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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 _make_destination_callable(dest):
 """Creates a callable out of the destination. If it's already callable, the destination is returned. Instead, if the object is a string or a writable object, it's wrapped in a closure to be used later. """

    if callable(dest):
        return dest
    elif hasattr(dest, 'write') or isinstance(dest, string_types):
        return _use_filehandle_to_save(dest)
    else:
        raise TypeError("Destination must be a string, writable or callable object.")