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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_subject_alt(self, name):
 """ Returns the native value for each value in the subject alt name extension reqiest that is an asn1crypto.x509.GeneralName of the type specified by the name param :param name: A unicode string use to filter the x509.GeneralName objects by - is the choice name x509.GeneralName :return: A list of unicode strings. Empty list indicates no subject alt name extension request. """


        if self._subject_alt_name is None:
            return []

        output = []
        for general_name in self._subject_alt_name:
            if general_name.name == name:
                output.append(general_name.native)
        return output