@staticmethod
def parse_metadata(result):
    """
        Returns a dictionary which will be merged into parsed data of the request. By default,
        it reads the `meta` content in the request body and returns it in a dictionary with
        a `_meta` top level key.
        """
    metadata = result.get('meta')
    if metadata:
        return {'_meta': metadata}
    else:
        return {}
