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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 get_callable(subcommand):
 # type: (config.RcliEntryPoint) -> Union[FunctionType, MethodType] """Return a callable object from the subcommand. Args: subcommand: A object loaded from an entry point. May be a module, class, or function. Returns: The callable entry point for the subcommand. If the subcommand is a function, it will be returned unchanged. If the subcommand is a module or a class, an instance of the command class will be returned. Raises: AssertionError: Raised when a module entry point does not have a callable class named Command. """

    _LOGGER.debug(
        'Creating callable from subcommand "%s".', subcommand.__name__)
    if isinstance(subcommand, ModuleType):
        _LOGGER.debug('Subcommand is a module.')
        assert hasattr(subcommand, 'Command'), (
            'Module subcommand must have callable "Command" class definition.')
        callable_ = subcommand.Command  # type: ignore
    else:
        callable_ = subcommand
    if any(isinstance(callable_, t) for t in six.class_types):
        return callable_()
    return callable_