def METHOD_NAME(self, template_data):
    """
    Verifies that the tags in the template data are part of the template.
    :param template_data: Template data formed of key-value pairs of tags and
                          replacement text.
    :return: True when all of the tags in the template data are usable with the
             template; otherwise, False.
    """
    diff = set(template_data) - self.template_tags
    if diff:
        logger.warning(
            "Template data contains tags that aren't in the template: %s", diff)
        return False
    else:
        return True