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<link href="/docs/diffusers/main/en/_app/immutable/assets/0.tn0RQdqM.css" rel="modulepreload"> <!--[--><!--[0--><!--[--><!--[0--><!--[--><p></p> <div class="items-center shrink-0 min-w-[100px] max-sm:min-w-[50px] justify-end ml-auto flex" style="float: inline-end; margin-inline-start: 10px; display: inline-flex; position: relative; z-index: 10;"><div dir="ltr" class="inline-flex rounded-md max-sm:rounded-sm"><button class="inline-flex items-center gap-1 h-7 max-sm:h-7 px-2 max-sm:px-1.5 text-sm font-medium text-gray-800 border border-r-0 rounded-l-md max-sm:rounded-l-sm border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-live="polite"><span class="inline-flex items-center justify-center rounded-md p-0.5 max-sm:p-0 hover:text-gray-800 dark:hover:text-gray-200"><svg class="sm:size-3.5 size-3" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg><!----></span> <span dir="auto">Copy page</span></button> <button class="inline-flex items-center justify-center w-6 max-sm:w-5 h-7 max-sm:h-7 disabled:pointer-events-none text-sm text-gray-500 hover:text-gray-700 dark:hover:text-white rounded-r-md max-sm:rounded-r-sm border border-l transition border-gray-200 bg-white hover:shadow-inner dark:border-gray-850 dark:bg-gray-950 dark:text-gray-200 dark:hover:bg-gray-800" aria-haspopup="menu" aria-expanded="false" aria-label="Open copy menu"><svg class="transition-transform text-gray-400 overflow-visible sm:size-3.5 size-3 rotate-0" width="1em" height="1em" viewBox="0 0 12 7" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M1 1L6 6L11 1" stroke="currentColor"></path></svg><!----></button></div> <!--[-1--><!--]--></div><!----> <!--[0--><h1 class="relative group"><a id="sequentialpipelineblocks" class="header-link block pr-1.5 text-lg no-hover:hidden with-hover:absolute with-hover:p-1.5 with-hover:opacity-0 with-hover:group-hover:opacity-100 with-hover:right-full" href="#sequentialpipelineblocks"><span><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 256"><path d="M167.594 88.393a8.001 8.001 0 0 1 0 11.314l-67.882 67.882a8 8 0 1 1-11.314-11.315l67.882-67.881a8.003 8.003 0 0 1 11.314 0zm-28.287 84.86l-28.284 28.284a40 40 0 0 1-56.567-56.567l28.284-28.284a8 8 0 0 0-11.315-11.315l-28.284 28.284a56 56 0 0 0 79.196 79.197l28.285-28.285a8 8 0 1 0-11.315-11.314zM212.852 43.14a56.002 56.002 0 0 0-79.196 0l-28.284 28.284a8 8 0 1 0 11.314 11.314l28.284-28.284a40 40 0 0 1 56.568 56.567l-28.285 28.285a8 8 0 0 0 11.315 11.314l28.284-28.284a56.065 56.065 0 0 0 0-79.196z" fill="currentColor"></path></svg><!----></span></a> <span><!---->SequentialPipelineBlocks<!----></span></h1><!--]--><!----> <p><a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.SequentialPipelineBlocks">SequentialPipelineBlocks</a> là một kiểu đa khối, kết hợp các <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.ModularPipelineBlocks">ModularPipelineBlocks</a> khác lại với nhau theo một trình tự. Dữ liệu chảy tuyến tính từ khối này sang khối tiếp theo bằng cách sử dụng <code>inputs</code> và <code>intermediate_outputs</code>. Mỗi khối trong <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.SequentialPipelineBlocks">SequentialPipelineBlocks</a> thường đại diện cho một bước trong pipeline, và bằng cách kết hợp chúng, bạn dần xây dựng nên một pipeline.</p> <p>Hướng dẫn này cho bạn cách kết nối hai khối vào một <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.SequentialPipelineBlocks">SequentialPipelineBlocks</a>.</p> <p>Tạo hai <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.ModularPipelineBlocks">ModularPipelineBlocks</a>. Khối đầu tiên, <code>InputBlock</code>, xuất ra giá trị <code>batch_size</code> và khối thứ hai, <code>ImageEncoderBlock</code>, sử dụng <code>batch_size</code> làm <code>inputs</code>.</p> <div class="flex space-x-2 items-center my-1.5 mr-8 h-7 !pl-0 -mx-3 md:mx-0"><!--[--><div class="flex items-center border rounded-lg px-1.5 py-1 leading-none select-none text-smd border-gray-800 bg-black dark:bg-gray-700 text-white">InputBlock</div><div class="flex items-center border rounded-lg px-1.5 py-1 leading-none select-none text-smd text-gray-500 cursor-pointer opacity-90 hover:text-gray-700 dark:hover:text-gray-200 hover:shadow-sm">ImageEncoderBlock</div><!--]--></div> <div class="language-select"><div><div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg><!----> <div class=" absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0 "><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent;"></div> Đã sao chép</div><!----></button><!----></div> <pre class="language-py "><!----><span class="hljs-keyword">from</span> diffusers.modular_pipelines <span class="hljs-keyword">import</span> ModularPipelineBlocks, InputParam, OutputParam
<span class="hljs-keyword">class</span> <span class="hljs-title class_">InputBlock</span>(<span class="hljs-title class_ inherited__">ModularPipelineBlocks</span>):
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">inputs</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> [
InputParam(name=<span class="hljs-string">&quot;prompt&quot;</span>, type_hint=<span class="hljs-built_in">list</span>, description=<span class="hljs-string">&quot;list of text prompts&quot;</span>),
InputParam(name=<span class="hljs-string">&quot;num_images_per_prompt&quot;</span>, type_hint=<span class="hljs-built_in">int</span>, description=<span class="hljs-string">&quot;number of images per prompt&quot;</span>),
]
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">intermediate_outputs</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> [
OutputParam(name=<span class="hljs-string">&quot;batch_size&quot;</span>, description=<span class="hljs-string">&quot;calculated batch size&quot;</span>),
]
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">description</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> <span class="hljs-string">&quot;A block that determines batch_size based on the number of prompts and num_images_per_prompt argument.&quot;</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">__call__</span>(<span class="hljs-params">self, components, state</span>):
block_state = <span class="hljs-variable language_">self</span>.get_block_state(state)
batch_size = <span class="hljs-built_in">len</span>(block_state.prompt)
block_state.batch_size = batch_size * block_state.num_images_per_prompt
<span class="hljs-variable language_">self</span>.set_block_state(state, block_state)
<span class="hljs-keyword">return</span> components, state<!----></pre></div><!----></div><!----> <div hidden=""><div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg><!----> <div class=" absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0 "><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent;"></div> Đã sao chép</div><!----></button><!----></div> <pre class="language-py "><!----><span class="hljs-keyword">import</span> torch
<span class="hljs-keyword">from</span> diffusers.modular_pipelines <span class="hljs-keyword">import</span> ModularPipelineBlocks, InputParam, OutputParam
<span class="hljs-keyword">class</span> <span class="hljs-title class_">ImageEncoderBlock</span>(<span class="hljs-title class_ inherited__">ModularPipelineBlocks</span>):
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">inputs</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> [
InputParam(name=<span class="hljs-string">&quot;image&quot;</span>, type_hint=<span class="hljs-string">&quot;PIL.Image&quot;</span>, description=<span class="hljs-string">&quot;raw input image to process&quot;</span>),
InputParam(name=<span class="hljs-string">&quot;batch_size&quot;</span>, type_hint=<span class="hljs-built_in">int</span>),
]
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">intermediate_outputs</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> [
OutputParam(name=<span class="hljs-string">&quot;image_latents&quot;</span>, description=<span class="hljs-string">&quot;latents representing the image&quot;</span>),
]
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">description</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> <span class="hljs-string">&quot;Encode raw image into its latent presentation&quot;</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">__call__</span>(<span class="hljs-params">self, components, state</span>):
block_state = <span class="hljs-variable language_">self</span>.get_block_state(state)
<span class="hljs-comment"># Simulate processing the image</span>
<span class="hljs-comment"># This will change the state of the image from a PIL image to a tensor for all blocks</span>
block_state.image = torch.randn(<span class="hljs-number">1</span>, <span class="hljs-number">3</span>, <span class="hljs-number">512</span>, <span class="hljs-number">512</span>)
block_state.batch_size = block_state.batch_size * <span class="hljs-number">2</span>
block_state.image_latents = torch.randn(<span class="hljs-number">1</span>, <span class="hljs-number">4</span>, <span class="hljs-number">64</span>, <span class="hljs-number">64</span>)
<span class="hljs-variable language_">self</span>.set_block_state(state, block_state)
<span class="hljs-keyword">return</span> components, state<!----></pre></div><!----></div><!----><!----></div><!----> <p>Kết nối hai khối bằng cách định nghĩa một <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.SequentialPipelineBlocks">SequentialPipelineBlocks</a>. Liệt kê các instance khối trong <code>block_classes</code> và tên tương ứng của chúng trong <code>block_names</code>. Các khối được thực thi theo thứ tự xuất hiện trong <code>block_classes</code>, và dữ liệu chảy từ khối này sang khối tiếp theo thông qua <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_states#diffusers.modular_pipelines.PipelineState">PipelineState</a>.</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg><!----> <div class=" absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0 "><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent;"></div> Đã sao chép</div><!----></button><!----></div> <pre class="language-py "><!----><span class="hljs-keyword">class</span> <span class="hljs-title class_">ImageProcessingStep</span>(<span class="hljs-title class_ inherited__">SequentialPipelineBlocks</span>):
<span class="hljs-string">&quot;&quot;&quot;
# auto_docstring
&quot;&quot;&quot;</span>
model_name = <span class="hljs-string">&quot;my_model&quot;</span>
block_classes = [InputBlock(), ImageEncoderBlock()]
block_names = [<span class="hljs-string">&quot;input&quot;</span>, <span class="hljs-string">&quot;image_encoder&quot;</span>]
<span class="hljs-meta"> @property</span>
<span class="hljs-keyword">def</span> <span class="hljs-title function_">description</span>(<span class="hljs-params">self</span>):
<span class="hljs-keyword">return</span> (
<span class="hljs-string">&quot;Process text prompts and images for the pipeline. It:\n&quot;</span>
<span class="hljs-string">&quot; - Determines the batch size from the prompts.\n&quot;</span>
<span class="hljs-string">&quot; - Encodes the image into latent space.&quot;</span>
)<!----></pre></div><!----> <p>Khi bạn tạo một <a href="/docs/diffusers/main/vi/api/modular_diffusers/pipeline_blocks#diffusers.SequentialPipelineBlocks">SequentialPipelineBlocks</a>, các thuộc tính như <code>inputs</code>, <code>intermediate_outputs</code> và <code>expected_components</code> sẽ được tự động tổng hợp từ các khối con, do đó không cần định nghĩa lại chúng.</p> <p>Có một số thuộc tính bạn nên thiết lập:</p> <ul><li><code>description</code>: Chúng tôi khuyến nghị thêm mô tả cho khối đã lắp ráp để giải thích bước kết hợp thực hiện điều gì.</li> <li><code>model_name</code>: Tham số này được suy ra tự động từ các khối con nhưng không phải lúc nào cũng chính xác, vì vậy bạn có thể cần ghi đè lên nó.</li> <li><code>outputs</code>: Mặc định, giá trị này giống với <code>intermediate_outputs</code>, nhưng bạn có thể thiết lập thủ công để kiểm soát các giá trị nào xuất hiện trong tài liệu. Điều này hữu ích để chỉ hiển thị các đầu ra cuối cùng thay vì tất cả các giá trị trung gian.</li></ul> <p>Các thuộc tính này, cùng với <code>inputs</code>, <code>intermediate_outputs</code> và <code>expected_components</code> đã được tổng hợp, được sử dụng để tự động tạo ra thuộc tính <code>doc</code>.</p> <p>In <code>ImageProcessingStep</code> để kiểm tra các khối con của nó, và dùng <code>doc</code> để xem tóm tắt đầy đủ về đầu vào, đầu ra và các thành phần của khối.</p> <div class="code-block relative "><div class="absolute top-2.5 right-4"><button class="inline-flex items-center relative text-sm focus:text-green-500 cursor-pointer focus:outline-none transition duration-200 ease-in-out opacity-0 mx-0.5 text-gray-600 " title="code excerpt" type="button"><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M28,10V28H10V10H28m0-2H10a2,2,0,0,0-2,2V28a2,2,0,0,0,2,2H28a2,2,0,0,0,2-2V10a2,2,0,0,0-2-2Z" transform="translate(0)"></path><path d="M4,18H2V4A2,2,0,0,1,4,2H18V4H4Z" transform="translate(0)"></path><rect fill="none" width="32" height="32"></rect></svg><!----> <div class=" absolute pointer-events-none transition-opacity bg-black text-white py-1 px-2 leading-tight rounded font-normal shadow left-1/2 top-full transform -translate-x-1/2 translate-y-2 opacity-0 "><div class="absolute bottom-full left-1/2 transform -translate-x-1/2 w-0 h-0 border-black border-4 border-t-0" style="border-left-color: transparent; border-right-color: transparent;"></div> Đã sao chép</div><!----></button><!----></div> <pre class="language-py "><!---->blocks = ImageProcessingStep()
<span class="hljs-built_in">print</span>(blocks)
<span class="hljs-built_in">print</span>(blocks.doc)<!----></pre></div><!----> <a class="!text-gray-400 !no-underline text-sm flex items-center not-prose mt-4" href="https://github.com/huggingface/diffusers/blob/main/docs/source/en/modular_diffusers/sequential_pipeline_blocks.md" target="_blank"><svg class="mr-1" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" fill="currentColor" focusable="false" role="img" width="1em" height="1em" preserveAspectRatio="xMidYMid meet" viewBox="0 0 32 32"><path d="M31,16l-7,7l-1.41-1.41L28.17,16l-5.58-5.59L24,9l7,7z"></path><path d="M1,16l7-7l1.41,1.41L3.83,16l5.58,5.59L8,23l-7-7z"></path><path d="M12.419,25.484L17.639,6.552l1.932,0.518L14.351,26.002z"></path></svg><!----> <span><span class="underline">Update</span> on GitHub</span></a><!----> <p></p><!--]--><!----><!--]--><!--]--><!--]--> <!--[-1--><!--]--><!--]-->
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