Retrieve the contents of an element
        :param element: The XML Element object
        :type  element: etree._Element

        :return: A list of responses
        :rtype : list of Response

def get_contents(self, element):
        """
        Retrieve the contents of an element
        :param element: The XML Element object
        :type  element: etree._Element

        :return: A list of responses
        :rtype : list of Response
        """
        return [Response(self.trigger, child, self.file_path)
                for child in element if child.tag in ['response', 'template']]