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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def Function( library: CDLL, name_or_ordinal: 'Union[str, int, None]'=None, proto_factory: ('Union[ctypes.CFUNCTYPE, ctypes.WINFUNCTYPE,' ' ctypes.PYFUNCTYPE]')=CFUNCTYPE, use_errno: bool=False, use_last_error: bool=False, ) -> 'Callable': """ Decorator factory for creating callables for native functions. Decorator factory for constructing relatively-nicely-looking callables that call into existing native functions exposed from a dynamically-linkable library. :param library: The library to look at :param name_or_ordinal: Typically the name of the symbol to load from the library. In rare cases it may also be the index of the function inside the library. :param proto_factory: The prototype factory. :param use_last_error: Passed directly to the prototype factory. :param use_last_error: Passed directly to the prototype factory. :returns: A decorator for a function with particular, special annotations. .. note:: Since nested functions have hard-to-reach documentation, the documentation of the function returned from ``native()`` is documented below. """

    def decorator(fn: 'Callable') -> 'Callable':
        metadata = _ctypes_metadata(fn)
        prototype = proto_factory(
            metadata.restype, *metadata.argtypes,
            use_errno=use_errno, use_last_error=use_last_error)
        func_spec = (name_or_ordinal or fn.__name__, library)
        return prototype(func_spec, metadata.paramflags)
    return decorator