(backend: str)
return backend.lower() in CONVERT_BACKENDS
Checks if the backend is known.
Checks if the backend is known.
Checks if the backend is known .
def has_backend(backend: str) -> bool:
    """Checks if the backend is known."""
    return backend.lower() in CONVERT_BACKENDS
def has_backend ( backend : str ) -> bool : return backend . lower ( ) in CONVERT_BACKENDS