# tensorplay.library.impl Source: https://www.tensorplay.cn/docs/generated/tensorplay.library.impl.html ```python tensorplay.library.impl(qualname: str, types: Any, func: Callable[[...], Any] | None = None, /, *, lib: Any = None) → Callable[[...], Any] | Callable[[Callable[[...], Any]], Callable[[...], Any]] ``` types accepts concrete devices ("CPU"/"CUDA") or composite spellings (CompositeExplicitAutograd → the device-agnostic slot).