Function _require

vicinity/backends/__init__.py:16–19

Check if a dependency is importable, otherwise raise an error.

(module_name: str, backend: Backend, extra: str)

def _require(module_name: str, backend: Backend, extra: str) -> None:
    """Check if a dependency is importable, otherwise raise an error."""
    if find_spec(module_name) is None:
        raise OptionalDependencyError(backend, extra)


def get_backend_class(backend: Backend | str) -> type[AbstractBackend]: