diff --git "a/backend/node_modules/effect/src/Channel.ts" "b/backend/node_modules/effect/src/Channel.ts"
new file mode 100644--- /dev/null
+++ "b/backend/node_modules/effect/src/Channel.ts"
@@ -0,0 +1,3051 @@
+/**
+ * @since 2.0.0
+ */
+import type * as Cause from "./Cause.js"
+import type * as ChildExecutorDecision from "./ChildExecutorDecision.js"
+import type * as Chunk from "./Chunk.js"
+import type * as Context from "./Context.js"
+import type * as Deferred from "./Deferred.js"
+import type * as Effect from "./Effect.js"
+import type * as Either from "./Either.js"
+import type * as Exit from "./Exit.js"
+import type { LazyArg } from "./Function.js"
+import * as channel from "./internal/channel.js"
+import * as core from "./internal/core-stream.js"
+import * as sink from "./internal/sink.js"
+import * as stream from "./internal/stream.js"
+import type * as Layer from "./Layer.js"
+import type * as MergeDecision from "./MergeDecision.js"
+import type * as MergeStrategy from "./MergeStrategy.js"
+import type * as Option from "./Option.js"
+import type { Pipeable } from "./Pipeable.js"
+import type { Predicate } from "./Predicate.js"
+import type * as PubSub from "./PubSub.js"
+import type * as Queue from "./Queue.js"
+import type * as Ref from "./Ref.js"
+import type * as Scope from "./Scope.js"
+import type * as SingleProducerAsyncInput from "./SingleProducerAsyncInput.js"
+import type * as Sink from "./Sink.js"
+import type * as Stream from "./Stream.js"
+import type * as Tracer from "./Tracer.js"
+import type * as Types from "./Types.js"
+import type * as Unify from "./Unify.js"
+import type * as UpstreamPullRequest from "./UpstreamPullRequest.js"
+import type * as UpstreamPullStrategy from "./UpstreamPullStrategy.js"
+
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+export const ChannelTypeId: unique symbol = core.ChannelTypeId
+
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+export type ChannelTypeId = typeof ChannelTypeId
+
+/**
+ * A `Channel` is a nexus of I/O operations, which supports both reading and
+ * writing. A channel may read values of type `InElem` and write values of type
+ * `OutElem`. When the channel finishes, it yields a value of type `OutDone`. A
+ * channel may fail with a value of type `OutErr`.
+ *
+ * Channels are the foundation of Streams: both streams and sinks are built on
+ * channels. Most users shouldn't have to use channels directly, as streams and
+ * sinks are much more convenient and cover all common use cases. However, when
+ * adding new stream and sink operators, or doing something highly specialized,
+ * it may be useful to use channels directly.
+ *
+ * Channels compose in a variety of ways:
+ *
+ *  - **Piping**: One channel can be piped to another channel, assuming the
+ *    input type of the second is the same as the output type of the first.
+ *  - **Sequencing**: The terminal value of one channel can be used to create
+ *    another channel, and both the first channel and the function that makes
+ *    the second channel can be composed into a channel.
+ *  - **Concatenating**: The output of one channel can be used to create other
+ *    channels, which are all concatenated together. The first channel and the
+ *    function that makes the other channels can be composed into a channel.
+ *
+ * @since 2.0.0
+ * @category models
+ */
+// export interface Channel<out Env, in InErr, in InElem, in InDone, out OutErr, out OutElem, out OutDone>
+export interface Channel<
+  out OutElem,
+  in InElem = unknown,
+  out OutErr = never,
+  in InErr = unknown,
+  out OutDone = void,
+  in InDone = unknown,
+  out Env = never
+> extends
+  Channel.Variance<
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env
+  >,
+  Pipeable
+{
+  [Unify.typeSymbol]?: unknown
+  [Unify.unifySymbol]?: ChannelUnify<this>
+  [Unify.ignoreSymbol]?: ChannelUnifyIgnore
+}
+
+/**
+ * @since 2.0.0
+ * @category models
+ */
+export interface ChannelUnify<A extends { [Unify.typeSymbol]?: any }> extends Effect.EffectUnify<A> {
+  Channel?: () => A[Unify.typeSymbol] extends
+    | Channel<
+      infer OutElem,
+      infer InElem,
+      infer OutErr,
+      infer InErr,
+      infer OutDone,
+      infer InDone,
+      infer Env
+    >
+    | infer _ ? Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+    : never
+}
+
+/**
+ * @category models
+ * @since 2.0.0
+ */
+export interface ChannelUnifyIgnore extends Effect.EffectUnifyIgnore {
+  Channel?: true
+}
+
+/**
+ * @since 2.0.0
+ * @category models
+ */
+declare module "./Effect.js" {
+  interface Effect<A, E, R> extends Channel<never, unknown, E, unknown, A, unknown, R> {}
+  interface EffectUnifyIgnore {
+    Channel?: true
+  }
+}
+
+/**
+ * @since 2.0.0
+ */
+export declare namespace Channel {
+  /**
+   * @since 2.0.0
+   * @category models
+   */
+  export interface Variance<out OutElem, in InElem, out OutErr, in InErr, out OutDone, in InDone, out Env> {
+    readonly [ChannelTypeId]: VarianceStruct<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  }
+  /**
+   * @since 2.0.0
+   * @category models
+   */
+  export interface VarianceStruct<out OutElem, in InElem, out OutErr, in InErr, out OutDone, in InDone, out Env> {
+    _Env: Types.Covariant<Env>
+    _InErr: Types.Contravariant<InErr>
+    _InElem: Types.Contravariant<InElem>
+    _InDone: Types.Contravariant<InDone>
+    _OutErr: Types.Covariant<OutErr>
+    _OutElem: Types.Covariant<OutElem>
+    _OutDone: Types.Covariant<OutDone>
+  }
+}
+
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+export const ChannelExceptionTypeId: unique symbol = channel.ChannelExceptionTypeId
+
+/**
+ * @since 2.0.0
+ * @category symbols
+ */
+export type ChannelExceptionTypeId = typeof ChannelExceptionTypeId
+
+/**
+ * Represents a generic checked exception which occurs when a `Channel` is
+ * executed.
+ *
+ * @since 2.0.0
+ * @category models
+ */
+export interface ChannelException<out E> {
+  readonly _tag: "ChannelException"
+  readonly [ChannelExceptionTypeId]: ChannelExceptionTypeId
+  readonly error: E
+}
+
+/**
+ * @since 3.5.4
+ * @category refinements
+ */
+export const isChannel: (u: unknown) => u is Channel<
+  unknown,
+  unknown,
+  unknown,
+  unknown,
+  unknown,
+  unknown,
+  unknown
+> = core.isChannel
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const acquireUseRelease: <Acquired, OutErr, Env, OutElem1, InElem, InErr, OutDone, InDone>(
+  acquire: Effect.Effect<Acquired, OutErr, Env>,
+  use: (a: Acquired) => Channel<OutElem1, InElem, OutErr, InErr, OutDone, InDone, Env>,
+  release: (a: Acquired, exit: Exit.Exit<OutDone, OutErr>) => Effect.Effect<any, never, Env>
+) => Channel<OutElem1, InElem, OutErr, InErr, OutDone, InDone, Env> = channel.acquireUseRelease
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const acquireReleaseOut: {
+  /**
+   * @since 2.0.0
+   * @category constructors
+   */
+  <Z, R2>(
+    release: (z: Z, e: Exit.Exit<unknown, unknown>) => Effect.Effect<unknown, never, R2>
+  ): <E, R>(self: Effect.Effect<Z, E, R>) => Channel<Z, unknown, E, unknown, void, unknown, R2 | R>
+  /**
+   * @since 2.0.0
+   * @category constructors
+   */
+  <Z, E, R, R2>(
+    self: Effect.Effect<Z, E, R>,
+    release: (z: Z, e: Exit.Exit<unknown, unknown>) => Effect.Effect<unknown, never, R2>
+  ): Channel<Z, unknown, E, unknown, void, unknown, R | R2>
+} = core.acquireReleaseOut
+
+/**
+ * Returns a new channel that is the same as this one, except the terminal
+ * value of the channel is the specified constant value.
+ *
+ * This method produces the same result as mapping this channel to the
+ * specified constant value.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const as: {
+  /**
+   * Returns a new channel that is the same as this one, except the terminal
+   * value of the channel is the specified constant value.
+   *
+   * This method produces the same result as mapping this channel to the
+   * specified constant value.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutDone2>(value: OutDone2): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+  /**
+   * Returns a new channel that is the same as this one, except the terminal
+   * value of the channel is the specified constant value.
+   *
+   * This method produces the same result as mapping this channel to the
+   * specified constant value.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutDone2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    value: OutDone2
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+} = channel.as
+
+/**
+ * @since 2.0.0
+ * @category mapping
+ */
+export const asVoid: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Channel<OutElem, InElem, OutErr, InErr, void, InDone, Env> = channel.asVoid
+
+/**
+ * Creates a channel backed by a buffer. When the buffer is empty, the channel
+ * will simply passthrough its input as output. However, when the buffer is
+ * non-empty, the value inside the buffer will be passed along as output.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const buffer: <InElem, InErr, InDone>(
+  options: { readonly empty: InElem; readonly isEmpty: Predicate<InElem>; readonly ref: Ref.Ref<InElem> }
+) => Channel<InElem, InElem, InErr, InErr, InDone, InDone, never> = channel.buffer
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const bufferChunk: <InElem, InErr, InDone>(
+  ref: Ref.Ref<Chunk.Chunk<InElem>>
+) => Channel<Chunk.Chunk<InElem>, Chunk.Chunk<InElem>, InErr, InErr, InDone, InDone> = channel.bufferChunk
+
+/**
+ * Returns a new channel that is the same as this one, except if this channel
+ * errors for any typed error, then the returned channel will switch over to
+ * using the fallback channel returned by the specified error handler.
+ *
+ * @since 2.0.0
+ * @category error handling
+ */
+export const catchAll: {
+  /**
+   * Returns a new channel that is the same as this one, except if this channel
+   * errors for any typed error, then the returned channel will switch over to
+   * using the fallback channel returned by the specified error handler.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutErr, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    f: (error: OutErr) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+  ): <OutElem, InElem, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone1 | OutDone,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that is the same as this one, except if this channel
+   * errors for any typed error, then the returned channel will switch over to
+   * using the fallback channel returned by the specified error handler.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (error: OutErr) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone | OutDone1,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.catchAll
+
+/**
+ * Returns a new channel that is the same as this one, except if this channel
+ * errors for any typed error, then the returned channel will switch over to
+ * using the fallback channel returned by the specified error handler.
+ *
+ * @since 2.0.0
+ * @category error handling
+ */
+export const catchAllCause: {
+  /**
+   * Returns a new channel that is the same as this one, except if this channel
+   * errors for any typed error, then the returned channel will switch over to
+   * using the fallback channel returned by the specified error handler.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutErr, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    f: (cause: Cause.Cause<OutErr>) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+  ): <OutElem, InElem, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone1 | OutDone,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that is the same as this one, except if this channel
+   * errors for any typed error, then the returned channel will switch over to
+   * using the fallback channel returned by the specified error handler.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (cause: Cause.Cause<OutErr>) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone | OutDone1,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = core.catchAllCause
+
+/**
+ * Concat sequentially a channel of channels.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const concatAll: <OutElem, InElem, OutErr, InErr, InDone, Env>(
+  channels: Channel<Channel<OutElem, InElem, OutErr, InErr, any, InDone, Env>, InElem, OutErr, InErr, any, InDone, Env>
+) => Channel<OutElem, InElem, OutErr, InErr, any, InDone, Env> = core.concatAll
+
+/**
+ * Concat sequentially a channel of channels.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const concatAllWith: <
+  OutElem,
+  InElem2,
+  OutErr2,
+  InErr2,
+  OutDone,
+  InDone2,
+  Env2,
+  InElem,
+  OutErr,
+  InErr,
+  OutDone2,
+  InDone,
+  Env,
+  OutDone3
+>(
+  channels: Channel<
+    Channel<OutElem, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2>,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone2,
+    InDone,
+    Env
+  >,
+  f: (o: OutDone, o1: OutDone) => OutDone,
+  g: (o: OutDone, o2: OutDone2) => OutDone3
+) => Channel<OutElem, InElem & InElem2, OutErr2 | OutErr, InErr & InErr2, OutDone3, InDone & InDone2, Env2 | Env> =
+  core.concatAllWith
+
+/**
+ * Returns a new channel whose outputs are fed to the specified factory
+ * function, which creates new channels in response. These new channels are
+ * sequentially concatenated together, and all their outputs appear as outputs
+ * of the newly returned channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const concatMap: {
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, OutElem2, InElem2, OutErr2, InErr2, X, InDone2, Env2>(
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, X, InDone2, Env2>
+  ): <Env, InErr, InElem, InDone, OutErr, OutDone>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem2, InElem & InElem2, OutErr2 | OutErr, InErr & InErr2, unknown, InDone & InDone2, Env2 | Env>
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <Env, InErr, InElem, InDone, OutErr, OutDone, OutElem, OutElem2, Env2, InErr2, InElem2, InDone2, OutErr2, X>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, X, InDone2, Env2>
+  ): Channel<OutElem2, InElem & InElem2, OutErr | OutErr2, InErr & InErr2, unknown, InDone & InDone2, Env | Env2>
+} = channel.concatMap
+
+/**
+ * Returns a new channel whose outputs are fed to the specified factory
+ * function, which creates new channels in response. These new channels are
+ * sequentially concatenated together, and all their outputs appear as outputs
+ * of the newly returned channel. The provided merging function is used to
+ * merge the terminal values of all channels into the single terminal value of
+ * the returned channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const concatMapWith: {
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel. The provided merging function is used to
+   * merge the terminal values of all channels into the single terminal value of
+   * the returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2, OutDone2, OutDone3>(
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2>,
+    g: (o: OutDone, o1: OutDone) => OutDone,
+    h: (o: OutDone, o2: OutDone2) => OutDone3
+  ): <Env, InErr, InElem, InDone, OutErr>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+  ) => Channel<OutElem2, InElem & InElem2, OutErr2 | OutErr, InErr & InErr2, OutDone3, InDone & InDone2, Env2 | Env>
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel. The provided merging function is used to
+   * merge the terminal values of all channels into the single terminal value of
+   * the returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone2,
+    InDone,
+    Env,
+    OutElem2,
+    InElem2,
+    OutErr2,
+    InErr2,
+    OutDone,
+    InDone2,
+    Env2,
+    OutDone3
+  >(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>,
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2>,
+    g: (o: OutDone, o1: OutDone) => OutDone,
+    h: (o: OutDone, o2: OutDone2) => OutDone3
+  ): Channel<OutElem2, InElem & InElem2, OutErr | OutErr2, InErr & InErr2, OutDone3, InDone & InDone2, Env | Env2>
+} = core.concatMapWith
+
+/**
+ * Returns a new channel whose outputs are fed to the specified factory
+ * function, which creates new channels in response. These new channels are
+ * sequentially concatenated together, and all their outputs appear as outputs
+ * of the newly returned channel. The provided merging function is used to
+ * merge the terminal values of all channels into the single terminal value of
+ * the returned channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const concatMapWithCustom: {
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel. The provided merging function is used to
+   * merge the terminal values of all channels into the single terminal value of
+   * the returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2, OutDone2, OutDone3>(
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2>,
+    g: (o: OutDone, o1: OutDone) => OutDone,
+    h: (o: OutDone, o2: OutDone2) => OutDone3,
+    onPull: (
+      upstreamPullRequest: UpstreamPullRequest.UpstreamPullRequest<OutElem>
+    ) => UpstreamPullStrategy.UpstreamPullStrategy<OutElem2>,
+    onEmit: (elem: OutElem2) => ChildExecutorDecision.ChildExecutorDecision
+  ): <Env, InErr, InElem, InDone, OutErr>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+  ) => Channel<OutElem2, InElem & InElem2, OutErr2 | OutErr, InErr & InErr2, OutDone3, InDone & InDone2, Env2 | Env>
+  /**
+   * Returns a new channel whose outputs are fed to the specified factory
+   * function, which creates new channels in response. These new channels are
+   * sequentially concatenated together, and all their outputs appear as outputs
+   * of the newly returned channel. The provided merging function is used to
+   * merge the terminal values of all channels into the single terminal value of
+   * the returned channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone2,
+    InDone,
+    Env,
+    OutElem2,
+    InElem2,
+    OutErr2,
+    InErr2,
+    OutDone,
+    InDone2,
+    Env2,
+    OutDone3
+  >(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>,
+    f: (o: OutElem) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone, InDone2, Env2>,
+    g: (o: OutDone, o1: OutDone) => OutDone,
+    h: (o: OutDone, o2: OutDone2) => OutDone3,
+    onPull: (
+      upstreamPullRequest: UpstreamPullRequest.UpstreamPullRequest<OutElem>
+    ) => UpstreamPullStrategy.UpstreamPullStrategy<OutElem2>,
+    onEmit: (elem: OutElem2) => ChildExecutorDecision.ChildExecutorDecision
+  ): Channel<OutElem2, InElem & InElem2, OutErr | OutErr2, InErr & InErr2, OutDone3, InDone & InDone2, Env | Env2>
+} = core.concatMapWithCustom
+
+/**
+ * Returns a new channel, which is the same as this one, except its outputs
+ * are filtered and transformed by the specified partial function.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const collect: {
+  /**
+   * Returns a new channel, which is the same as this one, except its outputs
+   * are filtered and transformed by the specified partial function.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, OutElem2>(pf: (o: OutElem) => Option.Option<OutElem2>): <InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, unknown, never, unknown, void, unknown, never>
+  ) => Channel<OutElem2, InElem, OutErr, InErr, OutDone, InDone, Env>
+  /**
+   * Returns a new channel, which is the same as this one, except its outputs
+   * are filtered and transformed by the specified partial function.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    pf: (o: OutElem) => Option.Option<OutElem2>
+  ): Channel<OutElem2, InElem, OutErr, InErr, OutDone, InDone, Env>
+} = channel.collect
+
+/**
+ * Returns a new channel, which is the concatenation of all the channels that
+ * are written out by this channel. This method may only be called on channels
+ * that output other channels.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const concatOut: <OutElem, InElem, OutErr, InErr, InDone, Env, OutDone>(
+  self: Channel<
+    Channel<OutElem, InElem, OutErr, InErr, unknown, InDone, Env>,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env
+  >
+) => Channel<OutElem, InElem, OutErr, InErr, unknown, InDone, Env> = channel.concatOut
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * function to the input channel's done value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInput: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's done value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InDone0, InDone>(f: (a: InDone0) => InDone): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone0, Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's done value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InDone0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (a: InDone0) => InDone
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone0, Env>
+} = channel.mapInput
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * effectual function to the input channel's done value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInputEffect: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's done value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InDone0, InDone, InErr, Env1>(f: (i: InDone0) => Effect.Effect<InDone, InErr, Env1>): <OutElem, InElem, OutErr, OutDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone0, Env1 | Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's done value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InDone0, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (i: InDone0) => Effect.Effect<InDone, InErr, Env1>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone0, Env | Env1>
+} = channel.mapInputEffect
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * function to the input channel's error value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInputError: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's error value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InErr0, InErr>(f: (a: InErr0) => InErr): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr0, OutDone, InDone, Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's error value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InErr0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (a: InErr0) => InErr
+  ): Channel<OutElem, InElem, OutErr, InErr0, OutDone, InDone, Env>
+} = channel.mapInputError
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * effectual function to the input channel's error value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInputErrorEffect: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's error value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InErr0, InDone, InErr, Env1>(f: (error: InErr0) => Effect.Effect<InDone, InErr, Env1>): <OutElem, InElem, OutErr, OutDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr0, OutDone, InDone, Env1 | Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's error value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InErr0, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (error: InErr0) => Effect.Effect<InDone, InErr, Env1>
+  ): Channel<OutElem, InElem, OutErr, InErr0, OutDone, InDone, Env | Env1>
+} = channel.mapInputErrorEffect
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * function to the input channel's output elements.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInputIn: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's output elements.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InElem0, InElem>(f: (a: InElem0) => InElem): <OutElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem0, OutErr, InErr, OutDone, InDone, Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * function to the input channel's output elements.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InElem0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (a: InElem0) => InElem
+  ): Channel<OutElem, InElem0, OutErr, InErr, OutDone, InDone, Env>
+} = channel.mapInputIn
+
+/**
+ * Returns a new channel which is the same as this one but applies the given
+ * effectual function to the input channel's output elements.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mapInputInEffect: {
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's output elements.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InElem0, InElem, InErr, Env1>(f: (a: InElem0) => Effect.Effect<InElem, InErr, Env1>): <OutElem, OutErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem0, OutErr, InErr, OutDone, InDone, Env1 | Env>
+  /**
+   * Returns a new channel which is the same as this one but applies the given
+   * effectual function to the input channel's output elements.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, InElem0, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (a: InElem0) => Effect.Effect<InElem, InErr, Env1>
+  ): Channel<OutElem, InElem0, OutErr, InErr, OutDone, InDone, Env | Env1>
+} = channel.mapInputInEffect
+
+/**
+ * Returns a new channel, which is the same as this one, except that all the
+ * outputs are collected and bundled into a tuple together with the terminal
+ * value of this channel.
+ *
+ * As the channel returned from this channel collects all of this channel's
+ * output into an in- memory chunk, it is not safe to call this method on
+ * channels that output a large or unbounded number of values.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const doneCollect: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Channel<never, InElem, OutErr, InErr, [Chunk.Chunk<OutElem>, OutDone], InDone, Env> = channel.doneCollect
+
+/**
+ * Returns a new channel which reads all the elements from upstream's output
+ * channel and ignores them, then terminates with the upstream result value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const drain: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Channel<never, InElem, OutErr, InErr, OutDone, InDone, Env> = channel.drain
+
+/**
+ * Returns a new channel which connects the given `AsyncInputProducer` as
+ * this channel's input.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const embedInput: {
+  /**
+   * Returns a new channel which connects the given `AsyncInputProducer` as
+   * this channel's input.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <InErr, InElem, InDone>(input: SingleProducerAsyncInput.AsyncInputProducer<InErr, InElem, InDone>): <OutElem, OutErr, OutDone, Env>(
+    self: Channel<OutElem, unknown, OutErr, unknown, OutDone, unknown, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  /**
+   * Returns a new channel which connects the given `AsyncInputProducer` as
+   * this channel's input.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, OutErr, OutDone, Env, InErr, InElem, InDone>(
+    self: Channel<OutElem, unknown, OutErr, unknown, OutDone, unknown, Env>,
+    input: SingleProducerAsyncInput.AsyncInputProducer<InErr, InElem, InDone>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+} = core.embedInput
+
+/**
+ * Returns a new channel that collects the output and terminal value of this
+ * channel, which it then writes as output of the returned channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const emitCollect: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Channel<[Chunk.Chunk<OutElem>, OutDone], InElem, OutErr, InErr, void, InDone, Env> = channel.emitCollect
+
+/**
+ * Returns a new channel with an attached finalizer. The finalizer is
+ * guaranteed to be executed so long as the channel begins execution (and
+ * regardless of whether or not it completes).
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const ensuring: {
+  /**
+   * Returns a new channel with an attached finalizer. The finalizer is
+   * guaranteed to be executed so long as the channel begins execution (and
+   * regardless of whether or not it completes).
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <Z, Env1>(finalizer: Effect.Effect<Z, never, Env1>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env1 | Env>
+  /**
+   * Returns a new channel with an attached finalizer. The finalizer is
+   * guaranteed to be executed so long as the channel begins execution (and
+   * regardless of whether or not it completes).
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, Z, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    finalizer: Effect.Effect<Z, never, Env1>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env | Env1>
+} = channel.ensuring
+
+/**
+ * Returns a new channel with an attached finalizer. The finalizer is
+ * guaranteed to be executed so long as the channel begins execution (and
+ * regardless of whether or not it completes).
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const ensuringWith: {
+  /**
+   * Returns a new channel with an attached finalizer. The finalizer is
+   * guaranteed to be executed so long as the channel begins execution (and
+   * regardless of whether or not it completes).
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutDone, OutErr, Env2>(
+    finalizer: (e: Exit.Exit<OutDone, OutErr>) => Effect.Effect<unknown, never, Env2>
+  ): <OutElem, InElem, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env2 | Env>
+  /**
+   * Returns a new channel with an attached finalizer. The finalizer is
+   * guaranteed to be executed so long as the channel begins execution (and
+   * regardless of whether or not it completes).
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, Env2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    finalizer: (e: Exit.Exit<OutDone, OutErr>) => Effect.Effect<unknown, never, Env2>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env | Env2>
+} = core.ensuringWith
+
+/**
+ * Accesses the whole context of the channel.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const context: <Env>() => Channel<never, unknown, never, unknown, Context.Context<Env>, unknown, Env> =
+  channel.context
+
+/**
+ * Accesses the context of the channel with the specified function.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const contextWith: <Env, OutDone>(
+  f: (env: Context.Context<Env>) => OutDone
+) => Channel<never, unknown, never, unknown, OutDone, unknown, Env> = channel.contextWith
+
+/**
+ * Accesses the context of the channel in the context of a channel.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const contextWithChannel: <Env, OutElem, InElem, OutErr, InErr, OutDone, InDone, Env1>(
+  f: (env: Context.Context<Env>) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env1>
+) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env | Env1> = channel.contextWithChannel
+
+/**
+ * Accesses the context of the channel in the context of an effect.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const contextWithEffect: <Env, OutDone, OutErr, Env1>(
+  f: (env: Context.Context<Env>) => Effect.Effect<OutDone, OutErr, Env1>
+) => Channel<never, unknown, OutErr, unknown, OutDone, unknown, Env | Env1> = channel.contextWithEffect
+
+/**
+ * Constructs a channel that fails immediately with the specified error.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fail: <E>(error: E) => Channel<never, unknown, E, unknown, never, unknown> = core.fail
+
+/**
+ * Constructs a channel that succeeds immediately with the specified lazily
+ * evaluated value.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const failSync: <E>(evaluate: LazyArg<E>) => Channel<never, unknown, E, unknown, never, unknown> = core.failSync
+
+/**
+ * Constructs a channel that fails immediately with the specified `Cause`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const failCause: <E>(cause: Cause.Cause<E>) => Channel<never, unknown, E, unknown, never, unknown> =
+  core.failCause
+
+/**
+ * Constructs a channel that succeeds immediately with the specified lazily
+ * evaluated `Cause`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const failCauseSync: <E>(
+  evaluate: LazyArg<Cause.Cause<E>>
+) => Channel<never, unknown, E, unknown, never, unknown> = core.failCauseSync
+
+/**
+ * Returns a new channel, which sequentially combines this channel, together
+ * with the provided factory function, which creates a second channel based on
+ * the terminal value of this channel. The result is a channel that will first
+ * perform the functions of this channel, before performing the functions of
+ * the created channel (including yielding its terminal value).
+ *
+ * @since 2.0.0
+ * @category sequencing
+ */
+export const flatMap: {
+  /**
+   * Returns a new channel, which sequentially combines this channel, together
+   * with the provided factory function, which creates a second channel based on
+   * the terminal value of this channel. The result is a channel that will first
+   * perform the functions of this channel, before performing the functions of
+   * the created channel (including yielding its terminal value).
+   *
+   * @since 2.0.0
+   * @category sequencing
+   */
+  <OutDone, OutElem1, InElem1, OutErr1, InErr1, OutDone2, InDone1, Env1>(
+    f: (d: OutDone) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone2, InDone1, Env1>
+  ): <OutElem, InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1 | OutErr,
+    InErr & InErr1,
+    OutDone2,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel, which sequentially combines this channel, together
+   * with the provided factory function, which creates a second channel based on
+   * the terminal value of this channel. The result is a channel that will first
+   * perform the functions of this channel, before performing the functions of
+   * the created channel (including yielding its terminal value).
+   *
+   * @since 2.0.0
+   * @category sequencing
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone2, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (d: OutDone) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone2, InDone1, Env1>
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr | OutErr1,
+    InErr & InErr1,
+    OutDone2,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = core.flatMap
+
+/**
+ * Returns a new channel, which flattens the terminal value of this channel.
+ * This function may only be called if the terminal value of this channel is
+ * another channel of compatible types.
+ *
+ * @since 2.0.0
+ * @category sequencing
+ */
+export const flatten: <
+  OutElem,
+  InElem,
+  OutErr,
+  InErr,
+  OutElem1,
+  InElem1,
+  OutErr1,
+  InErr1,
+  OutDone2,
+  InDone1,
+  Env1,
+  InDone,
+  Env
+>(
+  self: Channel<
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone2, InDone1, Env1>,
+    InDone,
+    Env
+  >
+) => Channel<
+  OutElem | OutElem1,
+  InElem & InElem1,
+  OutErr | OutErr1,
+  InErr & InErr1,
+  OutDone2,
+  InDone & InDone1,
+  Env1 | Env
+> = channel.flatten
+
+/**
+ * Folds over the result of this channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const foldChannel: {
+  /**
+   * Folds over the result of this channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutErr,
+    OutElem1,
+    InElem1,
+    OutErr1,
+    InErr1,
+    OutDone1,
+    InDone1,
+    Env1,
+    OutDone,
+    OutElem2,
+    InElem2,
+    OutErr2,
+    InErr2,
+    OutDone2,
+    InDone2,
+    Env2
+  >(
+    options: {
+      readonly onFailure: (error: OutErr) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+      readonly onSuccess: (done: OutDone) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone2, InDone2, Env2>
+    }
+  ): <Env, InErr, InElem, InDone, OutElem>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem2 | OutElem,
+    InElem & InElem1 & InElem2,
+    OutErr1 | OutErr2,
+    InErr & InErr1 & InErr2,
+    OutDone1 | OutDone2,
+    InDone & InDone1 & InDone2,
+    Env1 | Env2 | Env
+  >
+  /**
+   * Folds over the result of this channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env,
+    OutElem1,
+    InElem1,
+    OutErr1,
+    InErr1,
+    OutDone1,
+    InDone1,
+    Env1,
+    OutElem2,
+    InElem2,
+    OutErr2,
+    InErr2,
+    OutDone2,
+    InDone2,
+    Env2
+  >(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    options: {
+      readonly onFailure: (error: OutErr) => Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+      readonly onSuccess: (done: OutDone) => Channel<OutElem2, InElem2, OutErr2, InErr2, OutDone2, InDone2, Env2>
+    }
+  ): Channel<
+    OutElem | OutElem1 | OutElem2,
+    InElem & InElem1 & InElem2,
+    OutErr1 | OutErr2,
+    InErr & InErr1 & InErr2,
+    OutDone1 | OutDone2,
+    InDone & InDone1 & InDone2,
+    Env | Env1 | Env2
+  >
+} = channel.foldChannel
+
+/**
+ * Folds over the result of this channel including any cause of termination.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const foldCauseChannel: {
+  /**
+   * Folds over the result of this channel including any cause of termination.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutErr,
+    OutElem1,
+    InElem1,
+    OutErr2,
+    InErr1,
+    OutDone2,
+    InDone1,
+    Env1,
+    OutDone,
+    OutElem2,
+    InElem2,
+    OutErr3,
+    InErr2,
+    OutDone3,
+    InDone2,
+    Env2
+  >(
+    options: {
+      readonly onFailure: (
+        c: Cause.Cause<OutErr>
+      ) => Channel<OutElem1, InElem1, OutErr2, InErr1, OutDone2, InDone1, Env1>
+      readonly onSuccess: (o: OutDone) => Channel<OutElem2, InElem2, OutErr3, InErr2, OutDone3, InDone2, Env2>
+    }
+  ): <Env, InErr, InElem, InDone, OutElem>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem2 | OutElem,
+    InElem & InElem1 & InElem2,
+    OutErr2 | OutErr3,
+    InErr & InErr1 & InErr2,
+    OutDone2 | OutDone3,
+    InDone & InDone1 & InDone2,
+    Env1 | Env2 | Env
+  >
+  /**
+   * Folds over the result of this channel including any cause of termination.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env,
+    OutElem1,
+    InElem1,
+    OutErr2,
+    InErr1,
+    OutDone2,
+    InDone1,
+    Env1,
+    OutElem2,
+    InElem2,
+    OutErr3,
+    InErr2,
+    OutDone3,
+    InDone2,
+    Env2
+  >(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    options: {
+      readonly onFailure: (
+        c: Cause.Cause<OutErr>
+      ) => Channel<OutElem1, InElem1, OutErr2, InErr1, OutDone2, InDone1, Env1>
+      readonly onSuccess: (o: OutDone) => Channel<OutElem2, InElem2, OutErr3, InErr2, OutDone3, InDone2, Env2>
+    }
+  ): Channel<
+    OutElem | OutElem1 | OutElem2,
+    InElem & InElem1 & InElem2,
+    OutErr2 | OutErr3,
+    InErr & InErr1 & InErr2,
+    OutDone2 | OutDone3,
+    InDone & InDone1 & InDone2,
+    Env | Env1 | Env2
+  >
+} = core.foldCauseChannel
+
+/**
+ * Use an effect to end a channel.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromEffect: <A, E, R>(
+  effect: Effect.Effect<A, E, R>
+) => Channel<never, unknown, E, unknown, A, unknown, R> = core.fromEffect
+
+/**
+ * Constructs a channel from an `Either`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromEither: <R, L>(either: Either.Either<R, L>) => Channel<never, unknown, L, unknown, R, unknown> =
+  channel.fromEither
+
+/**
+ * Construct a `Channel` from an `AsyncInputConsumer`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromInput: <Err, Elem, Done>(
+  input: SingleProducerAsyncInput.AsyncInputConsumer<Err, Elem, Done>
+) => Channel<Elem, unknown, Err, unknown, Done, unknown> = channel.fromInput
+
+/**
+ * Construct a `Channel` from a `PubSub`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromPubSub: <Done, Err, Elem>(
+  pubsub: PubSub.PubSub<Either.Either<Elem, Exit.Exit<Done, Err>>>
+) => Channel<Elem, unknown, Err, unknown, Done, unknown> = channel.fromPubSub
+
+/**
+ * Construct a `Channel` from a `PubSub` within a scoped effect.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromPubSubScoped: <Done, Err, Elem>(
+  pubsub: PubSub.PubSub<Either.Either<Elem, Exit.Exit<Done, Err>>>
+) => Effect.Effect<Channel<Elem, unknown, Err, unknown, Done, unknown>, never, Scope.Scope> = channel.fromPubSubScoped
+
+/**
+ * Construct a `Channel` from an `Option`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromOption: <A>(
+  option: Option.Option<A>
+) => Channel<never, unknown, Option.Option<never>, unknown, A, unknown> = channel.fromOption
+
+/**
+ * Construct a `Channel` from a `Queue`.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const fromQueue: <Done, Err, Elem>(
+  queue: Queue.Dequeue<Either.Either<Elem, Exit.Exit<Done, Err>>>
+) => Channel<Elem, unknown, Err, unknown, Done, unknown> = channel.fromQueue
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const identity: <Elem, Err, Done>() => Channel<Elem, Elem, Err, Err, Done, Done> = channel.identityChannel
+
+/**
+ * Returns a new channel, which is the same as this one, except it will be
+ * interrupted when the specified effect completes. If the effect completes
+ * successfully before the underlying channel is done, then the returned
+ * channel will yield the success value of the effect as its terminal value.
+ * On the other hand, if the underlying channel finishes first, then the
+ * returned channel will yield the success value of the underlying channel as
+ * its terminal value.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const interruptWhen: {
+  /**
+   * Returns a new channel, which is the same as this one, except it will be
+   * interrupted when the specified effect completes. If the effect completes
+   * successfully before the underlying channel is done, then the returned
+   * channel will yield the success value of the effect as its terminal value.
+   * On the other hand, if the underlying channel finishes first, then the
+   * returned channel will yield the success value of the underlying channel as
+   * its terminal value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutDone1, OutErr1, Env1>(effect: Effect.Effect<OutDone1, OutErr1, Env1>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr1 | OutErr, InErr, OutDone1 | OutDone, InDone, Env1 | Env>
+  /**
+   * Returns a new channel, which is the same as this one, except it will be
+   * interrupted when the specified effect completes. If the effect completes
+   * successfully before the underlying channel is done, then the returned
+   * channel will yield the success value of the effect as its terminal value.
+   * On the other hand, if the underlying channel finishes first, then the
+   * returned channel will yield the success value of the underlying channel as
+   * its terminal value.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutDone1, OutErr1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    effect: Effect.Effect<OutDone1, OutErr1, Env1>
+  ): Channel<OutElem, InElem, OutErr | OutErr1, InErr, OutDone | OutDone1, InDone, Env | Env1>
+} = channel.interruptWhen
+
+/**
+ * Returns a new channel, which is the same as this one, except it will be
+ * interrupted when the specified deferred is completed. If the deferred is
+ * completed before the underlying channel is done, then the returned channel
+ * will yield the value of the deferred. Otherwise, if the underlying channel
+ * finishes first, then the returned channel will yield the value of the
+ * underlying channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const interruptWhenDeferred: {
+  /**
+   * Returns a new channel, which is the same as this one, except it will be
+   * interrupted when the specified deferred is completed. If the deferred is
+   * completed before the underlying channel is done, then the returned channel
+   * will yield the value of the deferred. Otherwise, if the underlying channel
+   * finishes first, then the returned channel will yield the value of the
+   * underlying channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutDone1, OutErr1>(deferred: Deferred.Deferred<OutDone1, OutErr1>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr1 | OutErr, InErr, OutDone1 | OutDone, InDone, Env>
+  /**
+   * Returns a new channel, which is the same as this one, except it will be
+   * interrupted when the specified deferred is completed. If the deferred is
+   * completed before the underlying channel is done, then the returned channel
+   * will yield the value of the deferred. Otherwise, if the underlying channel
+   * finishes first, then the returned channel will yield the value of the
+   * underlying channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutDone1, OutErr1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    deferred: Deferred.Deferred<OutDone1, OutErr1>
+  ): Channel<OutElem, InElem, OutErr | OutErr1, InErr, OutDone | OutDone1, InDone, Env>
+} = channel.interruptWhenDeferred
+
+/**
+ * Returns a new channel, which is the same as this one, except the terminal
+ * value of the returned channel is created by applying the specified function
+ * to the terminal value of this channel.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const map: {
+  /**
+   * Returns a new channel, which is the same as this one, except the terminal
+   * value of the returned channel is created by applying the specified function
+   * to the terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutDone, OutDone2>(f: (out: OutDone) => OutDone2): <OutElem, InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+  /**
+   * Returns a new channel, which is the same as this one, except the terminal
+   * value of the returned channel is created by applying the specified function
+   * to the terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutDone2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (out: OutDone) => OutDone2
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone2, InDone, Env>
+} = channel.map
+
+/**
+ * Returns a new channel, which is the same as this one, except the terminal
+ * value of the returned channel is created by applying the specified
+ * effectful function to the terminal value of this channel.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapEffect: {
+  /**
+   * Returns a new channel, which is the same as this one, except the terminal
+   * value of the returned channel is created by applying the specified
+   * effectful function to the terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutDone, OutDone1, OutErr1, Env1>(f: (o: OutDone) => Effect.Effect<OutDone1, OutErr1, Env1>): <OutElem, InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr1 | OutErr, InErr, OutDone1, InDone, Env1 | Env>
+  /**
+   * Returns a new channel, which is the same as this one, except the terminal
+   * value of the returned channel is created by applying the specified
+   * effectful function to the terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutDone1, OutErr1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (o: OutDone) => Effect.Effect<OutDone1, OutErr1, Env1>
+  ): Channel<OutElem, InElem, OutErr | OutErr1, InErr, OutDone1, InDone, Env | Env1>
+} = channel.mapEffect
+
+/**
+ * Returns a new channel, which is the same as this one, except the failure
+ * value of the returned channel is created by applying the specified function
+ * to the failure value of this channel.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapError: {
+  /**
+   * Returns a new channel, which is the same as this one, except the failure
+   * value of the returned channel is created by applying the specified function
+   * to the failure value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutErr, OutErr2>(f: (err: OutErr) => OutErr2): <OutElem, InElem, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr2, InErr, OutDone, InDone, Env>
+  /**
+   * Returns a new channel, which is the same as this one, except the failure
+   * value of the returned channel is created by applying the specified function
+   * to the failure value of this channel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutErr2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (err: OutErr) => OutErr2
+  ): Channel<OutElem, InElem, OutErr2, InErr, OutDone, InDone, Env>
+} = channel.mapError
+
+/**
+ * A more powerful version of `mapError` which also surfaces the `Cause`
+ * of the channel failure.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapErrorCause: {
+  /**
+   * A more powerful version of `mapError` which also surfaces the `Cause`
+   * of the channel failure.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutErr, OutErr2>(f: (cause: Cause.Cause<OutErr>) => Cause.Cause<OutErr2>): <OutElem, InElem, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr2, InErr, OutDone, InDone, Env>
+  /**
+   * A more powerful version of `mapError` which also surfaces the `Cause`
+   * of the channel failure.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutErr2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (cause: Cause.Cause<OutErr>) => Cause.Cause<OutErr2>
+  ): Channel<OutElem, InElem, OutErr2, InErr, OutDone, InDone, Env>
+} = channel.mapErrorCause
+
+/**
+ * Maps the output of this channel using the specified function.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapOut: {
+  /**
+   * Maps the output of this channel using the specified function.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, OutElem2>(f: (o: OutElem) => OutElem2): <InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem2, InElem, OutErr, InErr, OutDone, InDone, Env>
+  /**
+   * Maps the output of this channel using the specified function.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (o: OutElem) => OutElem2
+  ): Channel<OutElem2, InElem, OutErr, InErr, OutDone, InDone, Env>
+} = channel.mapOut
+
+/**
+ * Creates a channel that is like this channel but the given effectful function
+ * gets applied to each emitted output element.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapOutEffect: {
+  /**
+   * Creates a channel that is like this channel but the given effectful function
+   * gets applied to each emitted output element.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, OutElem1, OutErr1, Env1>(f: (o: OutElem) => Effect.Effect<OutElem1, OutErr1, Env1>): <InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem1, InElem, OutErr1 | OutErr, InErr, OutDone, InDone, Env1 | Env>
+  /**
+   * Creates a channel that is like this channel but the given effectful function
+   * gets applied to each emitted output element.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, OutErr1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (o: OutElem) => Effect.Effect<OutElem1, OutErr1, Env1>
+  ): Channel<OutElem1, InElem, OutErr | OutErr1, InErr, OutDone, InDone, Env | Env1>
+} = channel.mapOutEffect
+
+/**
+ * Creates a channel that is like this channel but the given Effect function gets
+ * applied to each emitted output element, taking `n` elements at once and
+ * mapping them in parallel.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mapOutEffectPar: {
+  /**
+   * Creates a channel that is like this channel but the given Effect function gets
+   * applied to each emitted output element, taking `n` elements at once and
+   * mapping them in parallel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, OutElem1, OutErr1, Env1>(f: (o: OutElem) => Effect.Effect<OutElem1, OutErr1, Env1>, n: number): <InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem1, InElem, OutErr1 | OutErr, InErr, OutDone, InDone, Env1 | Env>
+  /**
+   * Creates a channel that is like this channel but the given Effect function gets
+   * applied to each emitted output element, taking `n` elements at once and
+   * mapping them in parallel.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, OutErr1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (o: OutElem) => Effect.Effect<OutElem1, OutErr1, Env1>,
+    n: number
+  ): Channel<OutElem1, InElem, OutErr | OutErr1, InErr, OutDone, InDone, Env | Env1>
+} = channel.mapOutEffectPar
+
+/**
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeAll: (
+  options: {
+    readonly concurrency: number | "unbounded"
+    readonly bufferSize?: number | undefined
+    readonly mergeStrategy?: MergeStrategy.MergeStrategy | undefined
+  }
+) => <OutElem, InElem1, OutErr1, InErr1, InDone1, Env1, InElem, OutErr, InErr, InDone, Env>(
+  channels: Channel<
+    Channel<OutElem, InElem1, OutErr1, InErr1, unknown, InDone1, Env1>,
+    InElem,
+    OutErr,
+    InErr,
+    unknown,
+    InDone,
+    Env
+  >
+) => Channel<OutElem, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, unknown, InDone & InDone1, Env1 | Env> =
+  channel.mergeAll
+
+/**
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeAllUnbounded: <OutElem, InElem1, OutErr1, InErr1, InDone1, Env1, InElem, OutErr, InErr, InDone, Env>(
+  channels: Channel<
+    Channel<OutElem, InElem1, OutErr1, InErr1, unknown, InDone1, Env1>,
+    InElem,
+    OutErr,
+    InErr,
+    unknown,
+    InDone,
+    Env
+  >
+) => Channel<OutElem, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, unknown, InDone & InDone1, Env1 | Env> =
+  channel.mergeAllUnbounded
+
+/**
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeAllUnboundedWith: <
+  OutElem,
+  InElem1,
+  OutErr1,
+  InErr1,
+  OutDone,
+  InDone1,
+  Env1,
+  InElem,
+  OutErr,
+  InErr,
+  InDone,
+  Env
+>(
+  channels: Channel<
+    Channel<OutElem, InElem1, OutErr1, InErr1, OutDone, InDone1, Env1>,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env
+  >,
+  f: (o1: OutDone, o2: OutDone) => OutDone
+) => Channel<OutElem, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, OutDone, InDone & InDone1, Env1 | Env> =
+  channel.mergeAllUnboundedWith
+
+/**
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeAllWith: (
+  { bufferSize, concurrency, mergeStrategy }: {
+    readonly concurrency: number | "unbounded"
+    readonly bufferSize?: number | undefined
+    readonly mergeStrategy?: MergeStrategy.MergeStrategy | undefined
+  }
+) => <OutElem, InElem1, OutErr1, InErr1, OutDone, InDone1, Env1, InElem, OutErr, InErr, InDone, Env>(
+  channels: Channel<
+    Channel<OutElem, InElem1, OutErr1, InErr1, OutDone, InDone1, Env1>,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env
+  >,
+  f: (o1: OutDone, o2: OutDone) => OutDone
+) => Channel<OutElem, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, OutDone, InDone & InDone1, Env1 | Env> =
+  channel.mergeAllWith
+
+/**
+ * Returns a new channel which creates a new channel for each emitted element
+ * and merges some of them together. Different merge strategies control what
+ * happens if there are more than the given maximum number of channels gets
+ * created. See `Channel.mergeAll`.
+ *
+ * @since 2.0.0
+ * @category mapping
+ */
+export const mergeMap: {
+  /**
+   * Returns a new channel which creates a new channel for each emitted element
+   * and merges some of them together. Different merge strategies control what
+   * happens if there are more than the given maximum number of channels gets
+   * created. See `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>(
+    f: (outElem: OutElem) => Channel<OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>,
+    options: {
+      readonly concurrency: number | "unbounded"
+      readonly bufferSize?: number | undefined
+      readonly mergeStrategy?: MergeStrategy.MergeStrategy | undefined
+    }
+  ): <InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem1, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, unknown, InDone & InDone1, Env1 | Env>
+  /**
+   * Returns a new channel which creates a new channel for each emitted element
+   * and merges some of them together. Different merge strategies control what
+   * happens if there are more than the given maximum number of channels gets
+   * created. See `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category mapping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (outElem: OutElem) => Channel<OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>,
+    options: {
+      readonly concurrency: number | "unbounded"
+      readonly bufferSize?: number | undefined
+      readonly mergeStrategy?: MergeStrategy.MergeStrategy | undefined
+    }
+  ): Channel<OutElem1, InElem & InElem1, OutErr | OutErr1, InErr & InErr1, unknown, InDone & InDone1, Env | Env1>
+} = channel.mergeMap
+
+/**
+ * Returns a new channel which merges a number of channels emitted by this
+ * channel using the back pressuring merge strategy. See `Channel.mergeAll`.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeOut: {
+  /**
+   * Returns a new channel which merges a number of channels emitted by this
+   * channel using the back pressuring merge strategy. See `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  (n: number): <OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<
+      Channel<OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>,
+      InElem,
+      OutErr,
+      InErr,
+      OutDone,
+      InDone,
+      Env
+    >
+  ) => Channel<OutElem1, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, unknown, InDone & InDone1, Env1 | Env>
+  /**
+   * Returns a new channel which merges a number of channels emitted by this
+   * channel using the back pressuring merge strategy. See `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<
+      Channel<OutElem1, InElem1, OutErr1, InErr1, Z, InDone1, Env1>,
+      InElem,
+      OutErr,
+      InErr,
+      OutDone,
+      InDone,
+      Env
+    >,
+    n: number
+  ): Channel<OutElem1, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, unknown, InDone & InDone1, Env1 | Env>
+} = channel.mergeOut
+
+/**
+ * Returns a new channel which merges a number of channels emitted by this
+ * channel using the back pressuring merge strategy and uses a given function
+ * to merge each completed subchannel's result value. See
+ * `Channel.mergeAll`.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeOutWith: {
+  /**
+   * Returns a new channel which merges a number of channels emitted by this
+   * channel using the back pressuring merge strategy and uses a given function
+   * to merge each completed subchannel's result value. See
+   * `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutDone1>(n: number, f: (o1: OutDone1, o2: OutDone1) => OutDone1): <OutElem1, InElem1, OutErr1, InErr1, InDone1, Env1, InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<
+      Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+      InElem,
+      OutErr,
+      InErr,
+      OutDone1,
+      InDone,
+      Env
+    >
+  ) => Channel<OutElem1, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, OutDone1, InDone & InDone1, Env1 | Env>
+  /**
+   * Returns a new channel which merges a number of channels emitted by this
+   * channel using the back pressuring merge strategy and uses a given function
+   * to merge each completed subchannel's result value. See
+   * `Channel.mergeAll`.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1, InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<
+      Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+      InElem,
+      OutErr,
+      InErr,
+      OutDone1,
+      InDone,
+      Env
+    >,
+    n: number,
+    f: (o1: OutDone1, o2: OutDone1) => OutDone1
+  ): Channel<OutElem1, InElem & InElem1, OutErr1 | OutErr, InErr & InErr1, OutDone1, InDone & InDone1, Env1 | Env>
+} = channel.mergeOutWith
+
+/**
+ * Returns a new channel, which is the merge of this channel and the specified
+ * channel, where the behavior of the returned channel on left or right early
+ * termination is decided by the specified `leftDone` and `rightDone` merge
+ * decisions.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const mergeWith: {
+  /**
+   * Returns a new channel, which is the merge of this channel and the specified
+   * channel, where the behavior of the returned channel on left or right early
+   * termination is decided by the specified `leftDone` and `rightDone` merge
+   * decisions.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1, OutDone, OutErr, OutErr2, OutDone2, OutErr3, OutDone3>(
+    options: {
+      readonly other: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+      readonly onSelfDone: (
+        exit: Exit.Exit<OutDone, OutErr>
+      ) => MergeDecision.MergeDecision<Env1, OutErr1, OutDone1, OutErr2, OutDone2>
+      readonly onOtherDone: (
+        ex: Exit.Exit<OutDone1, OutErr1>
+      ) => MergeDecision.MergeDecision<Env1, OutErr, OutDone, OutErr3, OutDone3>
+    }
+  ): <Env, InErr, InElem, InDone, OutElem>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr2 | OutErr3,
+    InErr & InErr1,
+    OutDone2 | OutDone3,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel, which is the merge of this channel and the specified
+   * channel, where the behavior of the returned channel on left or right early
+   * termination is decided by the specified `leftDone` and `rightDone` merge
+   * decisions.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <
+    OutElem,
+    InElem,
+    OutErr,
+    InErr,
+    OutDone,
+    InDone,
+    Env,
+    OutElem1,
+    InElem1,
+    OutErr1,
+    InErr1,
+    OutDone1,
+    InDone1,
+    Env1,
+    OutErr2,
+    OutDone2,
+    OutErr3,
+    OutDone3
+  >(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    options: {
+      readonly other: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>
+      readonly onSelfDone: (
+        exit: Exit.Exit<OutDone, OutErr>
+      ) => MergeDecision.MergeDecision<Env1, OutErr1, OutDone1, OutErr2, OutDone2>
+      readonly onOtherDone: (
+        ex: Exit.Exit<OutDone1, OutErr1>
+      ) => MergeDecision.MergeDecision<Env1, OutErr, OutDone, OutErr3, OutDone3>
+    }
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr2 | OutErr3,
+    InErr & InErr1,
+    OutDone2 | OutDone3,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.mergeWith
+
+/**
+ * Returns a channel that never completes
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const never: Channel<never, unknown, never, unknown, never, unknown> = channel.never
+
+/**
+ * Translates channel failure into death of the fiber, making all failures
+ * unchecked and not a part of the type of the channel.
+ *
+ * @since 2.0.0
+ * @category error handling
+ */
+export const orDie: {
+  /**
+   * Translates channel failure into death of the fiber, making all failures
+   * unchecked and not a part of the type of the channel.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <E>(error: LazyArg<E>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, never, InErr, OutDone, InDone, Env>
+  /**
+   * Translates channel failure into death of the fiber, making all failures
+   * unchecked and not a part of the type of the channel.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, E>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    error: LazyArg<E>
+  ): Channel<OutElem, InElem, never, InErr, OutDone, InDone, Env>
+} = channel.orDie
+
+/**
+ * Keeps none of the errors, and terminates the fiber with them, using the
+ * specified function to convert the `OutErr` into a defect.
+ *
+ * @since 2.0.0
+ * @category error handling
+ */
+export const orDieWith: {
+  /**
+   * Keeps none of the errors, and terminates the fiber with them, using the
+   * specified function to convert the `OutErr` into a defect.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutErr>(f: (e: OutErr) => unknown): <OutElem, InElem, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, never, InErr, OutDone, InDone, Env>
+  /**
+   * Keeps none of the errors, and terminates the fiber with them, using the
+   * specified function to convert the `OutErr` into a defect.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (e: OutErr) => unknown
+  ): Channel<OutElem, InElem, never, InErr, OutDone, InDone, Env>
+} = channel.orDieWith
+
+/**
+ * Returns a new channel that will perform the operations of this one, until
+ * failure, and then it will switch over to the operations of the specified
+ * fallback channel.
+ *
+ * @since 2.0.0
+ * @category error handling
+ */
+export const orElse: {
+  /**
+   * Returns a new channel that will perform the operations of this one, until
+   * failure, and then it will switch over to the operations of the specified
+   * fallback channel.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    that: LazyArg<Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>>
+  ): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone1 | OutDone,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that will perform the operations of this one, until
+   * failure, and then it will switch over to the operations of the specified
+   * fallback channel.
+   *
+   * @since 2.0.0
+   * @category error handling
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: LazyArg<Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>>
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr1,
+    InErr & InErr1,
+    OutDone | OutDone1,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.orElse
+
+/**
+ * Returns a new channel that pipes the output of this channel into the
+ * specified channel. The returned channel has the input type of this channel,
+ * and the output type of the specified channel, terminating with the value of
+ * the specified channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const pipeTo: {
+  /**
+   * Returns a new channel that pipes the output of this channel into the
+   * specified channel. The returned channel has the input type of this channel,
+   * and the output type of the specified channel, terminating with the value of
+   * the specified channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem2, OutElem, OutErr2, OutErr, OutDone2, OutDone, Env2>(that: Channel<OutElem2, OutElem, OutErr2, OutErr, OutDone2, OutDone, Env2>): <InElem, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem2, InElem, OutErr2, InErr, OutDone2, InDone, Env2 | Env>
+  /**
+   * Returns a new channel that pipes the output of this channel into the
+   * specified channel. The returned channel has the input type of this channel,
+   * and the output type of the specified channel, terminating with the value of
+   * the specified channel.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem2, OutErr2, OutDone2, Env2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: Channel<OutElem2, OutElem, OutErr2, OutErr, OutDone2, OutDone, Env2>
+  ): Channel<OutElem2, InElem, OutErr2, InErr, OutDone2, InDone, Env | Env2>
+} = core.pipeTo
+
+/**
+ * Returns a new channel that pipes the output of this channel into the
+ * specified channel and preserves this channel's failures without providing
+ * them to the other channel for observation.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const pipeToOrFail: {
+  /**
+   * Returns a new channel that pipes the output of this channel into the
+   * specified channel and preserves this channel's failures without providing
+   * them to the other channel for observation.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem2, OutElem, OutErr2, OutDone2, OutDone, Env2>(that: Channel<OutElem2, OutElem, OutErr2, never, OutDone2, OutDone, Env2>): <InElem, OutErr, InErr, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem2, InElem, OutErr2 | OutErr, InErr, OutDone2, InDone, Env2 | Env>
+  /**
+   * Returns a new channel that pipes the output of this channel into the
+   * specified channel and preserves this channel's failures without providing
+   * them to the other channel for observation.
+   *
+   * @since 2.0.0
+   * @category utils
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem2, OutErr2, OutDone2, Env2>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: Channel<OutElem2, OutElem, OutErr2, never, OutDone2, OutDone, Env2>
+  ): Channel<OutElem2, InElem, OutErr | OutErr2, InErr, OutDone2, InDone, Env | Env2>
+} = channel.pipeToOrFail
+
+/**
+ * Provides the channel with its required context, which eliminates its
+ * dependency on `Env`.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const provideContext: {
+  /**
+   * Provides the channel with its required context, which eliminates its
+   * dependency on `Env`.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <Env>(env: Context.Context<Env>): <OutElem, InElem, OutErr, InErr, OutDone, InDone>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, never>
+  /**
+   * Provides the channel with its required context, which eliminates its
+   * dependency on `Env`.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    env: Context.Context<Env>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, never>
+} = core.provideContext
+
+/**
+ * Provides a layer to the channel, which translates it to another level.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const provideLayer: {
+  /**
+   * Provides a layer to the channel, which translates it to another level.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <Env, OutErr2, Env0>(layer: Layer.Layer<Env, OutErr2, Env0>): <OutElem, InElem, OutErr, InErr, OutDone, InDone>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr2 | OutErr, InErr, OutDone, InDone, Env0>
+  /**
+   * Provides a layer to the channel, which translates it to another level.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutErr2, Env0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    layer: Layer.Layer<Env, OutErr2, Env0>
+  ): Channel<OutElem, InElem, OutErr | OutErr2, InErr, OutDone, InDone, Env0>
+} = channel.provideLayer
+
+/**
+ * Transforms the context being provided to the channel with the specified
+ * function.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const mapInputContext: {
+  /**
+   * Transforms the context being provided to the channel with the specified
+   * function.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <Env0, Env>(f: (env: Context.Context<Env0>) => Context.Context<Env>): <OutElem, InElem, OutErr, InErr, OutDone, InDone>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env0>
+  /**
+   * Transforms the context being provided to the channel with the specified
+   * function.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, Env0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    f: (env: Context.Context<Env0>) => Context.Context<Env>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env0>
+} = channel.mapInputContext
+
+/**
+ * Splits the context into two parts, providing one part using the
+ * specified layer and leaving the remainder `Env0`.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const provideSomeLayer: {
+  /**
+   * Splits the context into two parts, providing one part using the
+   * specified layer and leaving the remainder `Env0`.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <R2, OutErr2, Env0>(layer: Layer.Layer<R2, OutErr2, Env0>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, R>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, R>
+  ) => Channel<OutElem, InElem, OutErr2 | OutErr, InErr, OutDone, InDone, Env0 | Exclude<R, R2>>
+  /**
+   * Splits the context into two parts, providing one part using the
+   * specified layer and leaving the remainder `Env0`.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, R, R2, OutErr2, Env0>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, R>,
+    layer: Layer.Layer<R2, OutErr2, Env0>
+  ): Channel<OutElem, InElem, OutErr | OutErr2, InErr, OutDone, InDone, Env0 | Exclude<R, R2>>
+} = channel.provideSomeLayer
+
+/**
+ * Provides the effect with the single service it requires. If the effect
+ * requires more than one service use `provideContext` instead.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const provideService: {
+  /**
+   * Provides the effect with the single service it requires. If the effect
+   * requires more than one service use `provideContext` instead.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <I, S>(tag: Context.Tag<I, S>, service: Types.NoInfer<S>): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Exclude<Env, I>>
+  /**
+   * Provides the effect with the single service it requires. If the effect
+   * requires more than one service use `provideContext` instead.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, I, S>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    tag: Context.Tag<I, S>,
+    service: Types.NoInfer<S>
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Exclude<Env, I>>
+} = channel.provideService
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const read: <In>() => Channel<never, In, Option.Option<never>, unknown, In, unknown> = channel.read
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const readOrFail: <E, In = unknown>(error: E) => Channel<never, In, E, unknown, In, unknown> = core.readOrFail
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const readWith: <
+  InElem,
+  OutElem,
+  OutErr,
+  InErr,
+  OutDone,
+  InDone,
+  Env,
+  OutElem2,
+  OutErr2,
+  OutDone2,
+  Env2,
+  OutElem3,
+  OutErr3,
+  OutDone3,
+  Env3
+>(
+  options: {
+    readonly onInput: (input: InElem) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+    readonly onFailure: (error: InErr) => Channel<OutElem2, InElem, OutErr2, InErr, OutDone2, InDone, Env2>
+    readonly onDone: (done: InDone) => Channel<OutElem3, InElem, OutErr3, InErr, OutDone3, InDone, Env3>
+  }
+) => Channel<
+  OutElem | OutElem2 | OutElem3,
+  InElem,
+  OutErr | OutErr2 | OutErr3,
+  InErr,
+  OutDone | OutDone2 | OutDone3,
+  InDone,
+  Env | Env2 | Env3
+> = core.readWith
+
+/**
+ * @since 2.0.0
+ * @category constructors
+ */
+export const readWithCause: <
+  InElem,
+  OutElem,
+  OutErr,
+  InErr,
+  OutDone,
+  InDone,
+  Env,
+  OutElem2,
+  OutErr2,
+  OutDone2,
+  Env2,
+  OutElem3,
+  OutErr3,
+  OutDone3,
+  Env3
+>(
+  options: {
+    readonly onInput: (input: InElem) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+    readonly onFailure: (cause: Cause.Cause<InErr>) => Channel<OutElem2, InElem, OutErr2, InErr, OutDone2, InDone, Env2>
+    readonly onDone: (done: InDone) => Channel<OutElem3, InElem, OutErr3, InErr, OutDone3, InDone, Env3>
+  }
+) => Channel<
+  OutElem | OutElem2 | OutElem3,
+  InElem,
+  OutErr | OutErr2 | OutErr3,
+  InErr,
+  OutDone | OutDone2 | OutDone3,
+  InDone,
+  Env | Env2 | Env3
+> = core.readWithCause
+
+/**
+ * Creates a channel which repeatedly runs this channel.
+ *
+ * @since 2.0.0
+ * @category utils
+ */
+export const repeated: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env> = channel.repeated
+
+/**
+ * Runs a channel until the end is received.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const run: <OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<never, unknown, OutErr, InErr, OutDone, InDone, Env>
+) => Effect.Effect<OutDone, OutErr, Env> = channel.run
+
+/**
+ * Run the channel until it finishes with a done value or fails with an error
+ * and collects its emitted output elements.
+ *
+ * The channel must not read any input.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const runCollect: <OutElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, Env>
+) => Effect.Effect<[Chunk.Chunk<OutElem>, OutDone], OutErr, Env> = channel.runCollect
+
+/**
+ * Runs a channel until the end is received.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const runDrain: <OutElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, Env>
+) => Effect.Effect<OutDone, OutErr, Env> = channel.runDrain
+
+/**
+ * Run the channel until it finishes with a done value or fails with an error.
+ * The channel must not read any input or write any output.
+ *
+ * Closing the channel, which includes execution of all the finalizers
+ * attached to the channel will be added to the current scope as a finalizer.
+ *
+ * @since 3.11.0
+ * @category destructors
+ */
+export const runScoped: <OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<never, unknown, OutErr, InErr, OutDone, InDone, Env>
+) => Effect.Effect<OutDone, OutErr, Env | Scope.Scope> = channel.runScoped
+
+/**
+ * Use a scoped effect to emit an output element.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const scoped: <A, E, R>(
+  effect: Effect.Effect<A, E, R>
+) => Channel<A, unknown, E, unknown, unknown, unknown, Exclude<R, Scope.Scope>> = channel.scoped
+
+/**
+ * Use a function that receives a scope and returns an effect to emit an output
+ * element. The output element will be the result of the returned effect, if
+ * successful.
+ *
+ * @since 3.11.0
+ * @category constructors
+ */
+export const scopedWith: <A, E, R>(
+  f: (scope: Scope.Scope) => Effect.Effect<A, E, R>
+) => Channel<A, unknown, E, unknown, unknown, unknown, R> = channel.scopedWith
+
+/**
+ * Splits strings on newlines. Handles both Windows newlines (`\r\n`) and UNIX
+ * newlines (`\n`).
+ *
+ * @since 2.0.0
+ * @category combinators
+ */
+export const splitLines: <Err, Done>() => Channel<
+  Chunk.Chunk<string>,
+  Chunk.Chunk<string>,
+  Err,
+  Err,
+  Done,
+  Done,
+  never
+> = channel.splitLines
+
+/**
+ * Constructs a channel that succeeds immediately with the specified value.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const succeed: <A>(value: A) => Channel<never, unknown, never, unknown, A, unknown> = core.succeed
+
+/**
+ * Lazily constructs a channel from the given side effect.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const suspend: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  evaluate: LazyArg<Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>>
+) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env> = core.suspend
+
+/**
+ * Constructs a channel that succeeds immediately with the specified lazy value.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const sync: <OutDone>(
+  evaluate: LazyArg<OutDone>
+) => Channel<never, unknown, never, unknown, OutDone, unknown> = core.sync
+
+/**
+ * Converts a `Channel` to a `PubSub`.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const toPubSub: <Done, Err, Elem>(
+  pubsub: PubSub.PubSub<Either.Either<Elem, Exit.Exit<Done, Err>>>
+) => Channel<never, Elem, never, Err, unknown, Done> = channel.toPubSub
+
+/**
+ * Returns a scoped `Effect` that can be used to repeatedly pull elements from
+ * the constructed `Channel`. The pull effect fails with the channel's failure
+ * in case the channel fails, or returns either the channel's done value or an
+ * emitted element.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const toPull: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+  self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+) => Effect.Effect<Effect.Effect<Either.Either<OutElem, OutDone>, OutErr, Env>, never, Scope.Scope | Env> =
+  channel.toPull
+
+/**
+ * Returns an `Effect` that can be used to repeatedly pull elements from the
+ * constructed `Channel` within the provided `Scope`. The pull effect fails
+ * with the channel's failure in case the channel fails, or returns either the
+ * channel's done value or an emitted element.
+ *
+ * @since 3.11.0
+ * @category destructors
+ */
+export const toPullIn: {
+  /**
+   * Returns an `Effect` that can be used to repeatedly pull elements from the
+   * constructed `Channel` within the provided `Scope`. The pull effect fails
+   * with the channel's failure in case the channel fails, or returns either the
+   * channel's done value or an emitted element.
+   *
+   * @since 3.11.0
+   * @category destructors
+   */
+  (scope: Scope.Scope): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Effect.Effect<Effect.Effect<Either.Either<OutElem, OutDone>, OutErr, Env>, never, Env>
+  /**
+   * Returns an `Effect` that can be used to repeatedly pull elements from the
+   * constructed `Channel` within the provided `Scope`. The pull effect fails
+   * with the channel's failure in case the channel fails, or returns either the
+   * channel's done value or an emitted element.
+   *
+   * @since 3.11.0
+   * @category destructors
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    scope: Scope.Scope
+  ): Effect.Effect<Effect.Effect<Either.Either<OutElem, OutDone>, OutErr, Env>, never, Env>
+} = channel.toPullIn
+
+/**
+ * Converts a `Channel` to a `Queue`.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const toQueue: <Done, Err, Elem>(
+  queue: Queue.Enqueue<Either.Either<Elem, Exit.Exit<Done, Err>>>
+) => Channel<never, Elem, never, Err, unknown, Done> = channel.toQueue
+
+/** Converts this channel to a `Sink`.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const toSink: <OutElem, InElem, OutErr, InErr, OutDone, Env>(
+  self: Channel<Chunk.Chunk<OutElem>, Chunk.Chunk<InElem>, OutErr, InErr, OutDone, unknown, Env>
+) => Sink.Sink<OutDone, InElem, OutElem, OutErr, Env> = sink.channelToSink
+
+/**
+ * Converts this channel to a `Stream`.
+ *
+ * @since 2.0.0
+ * @category destructors
+ */
+export const toStream: <OutElem, OutErr, OutDone, Env>(
+  self: Channel<Chunk.Chunk<OutElem>, unknown, OutErr, unknown, OutDone, unknown, Env>
+) => Stream.Stream<OutElem, OutErr, Env> = stream.channelToStream
+
+const void_: Channel<never> = core.void
+export {
+  /**
+   * @since 2.0.0
+   * @category constructors
+   */
+  void_ as void
+}
+
+/**
+ * Constructs a `Channel` from an effect that will result in a `Channel` if
+ * successful.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const unwrap: <OutElem, InElem, OutErr, InErr, OutDone, InDone, R2, E, R>(
+  channel: Effect.Effect<Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, R2>, E, R>
+) => Channel<OutElem, InElem, E | OutErr, InErr, OutDone, InDone, R | R2> = channel.unwrap
+
+/**
+ * Constructs a `Channel` from a scoped effect that will result in a
+ * `Channel` if successful.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const unwrapScoped: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, E, R>(
+  self: Effect.Effect<Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>, E, R>
+) => Channel<OutElem, InElem, E | OutErr, InErr, OutDone, InDone, Env | Exclude<R, Scope.Scope>> = channel.unwrapScoped
+
+/**
+ * Constructs a `Channel` from a function which receives a `Scope` and returns
+ * an effect that will result in a `Channel` if successful.
+ *
+ * @since 3.11.0
+ * @category constructors
+ */
+export const unwrapScopedWith: <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, E, R>(
+  f: (scope: Scope.Scope) => Effect.Effect<Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>, E, R>
+) => Channel<OutElem, InElem, E | OutErr, InErr, OutDone, InDone, R | Env> = channel.unwrapScopedWith
+
+/**
+ * Updates a service in the context of this channel.
+ *
+ * @since 2.0.0
+ * @category context
+ */
+export const updateService: {
+  /**
+   * Updates a service in the context of this channel.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <I, S>(
+    tag: Context.Tag<I, S>,
+    f: (resource: Types.NoInfer<S>) => Types.NoInfer<S>
+  ): <OutElem, OutErr, InErr, OutDone, InDone, R>(
+    self: Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, R>
+  ) => Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, I | R>
+  /**
+   * Updates a service in the context of this channel.
+   *
+   * @since 2.0.0
+   * @category context
+   */
+  <OutElem, OutErr, InErr, OutDone, InDone, R, I, S>(
+    self: Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, R>,
+    tag: Context.Tag<I, S>,
+    f: (resource: Types.NoInfer<S>) => Types.NoInfer<S>
+  ): Channel<OutElem, unknown, OutErr, InErr, OutDone, InDone, I | R>
+} = channel.updateService
+
+/**
+ * Wraps the channel with a new span for tracing.
+ *
+ * @since 2.0.0
+ * @category tracing
+ */
+export const withSpan: {
+  /**
+   * Wraps the channel with a new span for tracing.
+   *
+   * @since 2.0.0
+   * @category tracing
+   */
+  (name: string, options?: Tracer.SpanOptions | undefined): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Exclude<Env, Tracer.ParentSpan>>
+  /**
+   * Wraps the channel with a new span for tracing.
+   *
+   * @since 2.0.0
+   * @category tracing
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    name: string,
+    options?: Tracer.SpanOptions | undefined
+  ): Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Exclude<Env, Tracer.ParentSpan>>
+} = channel.withSpan
+
+/**
+ * Writes a single value to the channel.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const write: <OutElem>(out: OutElem) => Channel<OutElem> = core.write
+
+/**
+ * Writes a sequence of values to the channel.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const writeAll: <OutElems extends Array<any>>(
+  ...outs: OutElems
+) => Channel<OutElems[number]> = channel.writeAll
+
+/**
+ * Writes a `Chunk` of values to the channel.
+ *
+ * @since 2.0.0
+ * @category constructors
+ */
+export const writeChunk: <OutElem>(
+  outs: Chunk.Chunk<OutElem>
+) => Channel<OutElem> = channel.writeChunk
+
+/**
+ * Returns a new channel that is the sequential composition of this channel
+ * and the specified channel. The returned channel terminates with a tuple of
+ * the terminal values of both channels.
+ *
+ * @since 2.0.0
+ * @category zipping
+ */
+export const zip: {
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with a tuple of
+   * the terminal values of both channels.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: { readonly concurrent?: boolean | undefined } | undefined
+  ): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1 | OutErr,
+    InErr & InErr1,
+    readonly [OutDone, OutDone1],
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with a tuple of
+   * the terminal values of both channels.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: { readonly concurrent?: boolean | undefined } | undefined
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr | OutErr1,
+    InErr & InErr1,
+    readonly [OutDone, OutDone1],
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.zip
+
+/**
+ * Returns a new channel that is the sequential composition of this channel
+ * and the specified channel. The returned channel terminates with the
+ * terminal value of this channel.
+ *
+ * @since 2.0.0
+ * @category zipping
+ */
+export const zipLeft: {
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with the
+   * terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: { readonly concurrent?: boolean | undefined } | undefined
+  ): <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1 | OutErr,
+    InErr & InErr1,
+    OutDone,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with the
+   * terminal value of this channel.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <OutElem, InElem, OutErr, InErr, OutDone, InDone, Env, OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: { readonly concurrent?: boolean | undefined } | undefined
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr | OutErr1,
+    InErr & InErr1,
+    OutDone,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.zipLeft
+
+/**
+ * Returns a new channel that is the sequential composition of this channel
+ * and the specified channel. The returned channel terminates with the
+ * terminal value of that channel.
+ *
+ * @since 2.0.0
+ * @category zipping
+ */
+export const zipRight: {
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with the
+   * terminal value of that channel.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <Env1, InErr1, InElem1, InDone1, OutErr1, OutElem1, OutDone1>(
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: {
+      readonly concurrent?: boolean | undefined
+    }
+  ): <Env, InErr, InElem, InDone, OutErr, OutElem, OutDone>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>
+  ) => Channel<
+    OutElem1 | OutElem,
+    InElem & InElem1,
+    OutErr1 | OutErr,
+    InErr & InErr1,
+    OutDone1,
+    InDone & InDone1,
+    Env1 | Env
+  >
+  /**
+   * Returns a new channel that is the sequential composition of this channel
+   * and the specified channel. The returned channel terminates with the
+   * terminal value of that channel.
+   *
+   * @since 2.0.0
+   * @category zipping
+   */
+  <Env, InErr, InElem, InDone, OutErr, OutElem, OutDone, Env1, InErr1, InElem1, InDone1, OutErr1, OutElem1, OutDone1>(
+    self: Channel<OutElem, InElem, OutErr, InErr, OutDone, InDone, Env>,
+    that: Channel<OutElem1, InElem1, OutErr1, InErr1, OutDone1, InDone1, Env1>,
+    options?: {
+      readonly concurrent?: boolean | undefined
+    }
+  ): Channel<
+    OutElem | OutElem1,
+    InElem & InElem1,
+    OutErr | OutErr1,
+    InErr & InErr1,
+    OutDone1,
+    InDone & InDone1,
+    Env | Env1
+  >
+} = channel.zipRight
+
+/**
+ * Represents a generic checked exception which occurs when a `Channel` is
+ * executed.
+ *
+ * @since 2.0.0
+ * @category errors
+ */
+export const ChannelException: <E>(error: E) => ChannelException<E> = channel.ChannelException
+
+/**
+ * Returns `true` if the specified value is an `ChannelException`, `false`
+ * otherwise.
+ *
+ * @since 2.0.0
+ * @category refinements
+ */
+export const isChannelException: (u: unknown) => u is ChannelException<unknown> = channel.isChannelException