| """Backends: everything a specific model knows about itself. | |
| The core is model-neutral by construction, so all the words that only mean | |
| something to one model (segment names, block counts, sampler shapes, where | |
| the tap goes) live behind this seam. H3 is the first backend because | |
| MAINodes already has substantial H3 tooling and H3 has a native reference | |
| path; nothing in the core assumes it is the only one. | |
| Registration is a dict, not a plugin system. When there are three backends | |
| that is still the right amount of machinery. | |
| """ | |
| from concept_lab.backends.base import Backend, BackendError # noqa: F401 | |
| def get_backend(name: str) -> Backend: | |
| from concept_lab.backends.h3 import H3Backend | |
| table = {"h3": H3Backend} | |
| if name not in table: | |
| raise BackendError(f"unknown backend {name!r}; have {sorted(table)}") | |
| return table[name]() | |
| def list_backends() -> list: | |
| return ["h3"] | |