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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 _prepare_forms(self):
 """ private function to prepare content for paramType=form """

        content_type = 'application/x-www-form-urlencoded'
        if self.__op.consumes and content_type not in self.__op.consumes:
            raise errs.SchemaError('content type {0} does not present in {1}'.format(content_type, self.__op.consumes))

        return content_type, six.moves.urllib.parse.urlencode(self.__p['formData'])