How to use the azure-storage-queue.azure.storage.queue._error._validate_message_type_text function in azure-storage-queue

def text_base64encode(data):
        '''
        Base64 encode unicode text.
        
        :param str data: String to encode.
        :return: Base64 encoded string.
        :rtype: str
        '''
        _validate_message_type_text(data)
        return b64encode(data.encode('utf-8')).decode('utf-8')

def text_xmlencode(data):
        ''' 
        XML encode unicode text.

        :param str data: Unicode string to encode
        :return: XML encoded data.
        :rtype: str
        '''
        _validate_message_type_text(data)
        return xml_escape(data)