code: def info(self, index=None, params=None):
          
          return self.transport.perform_request(
              "GET",
              _make_path(index, "_xpack", "migration", "deprecations"),
              params=params,
          )
docs: `<http://www.elastic.co/guide/en/migration/current/migration-api-deprecation.html>`_
  
          :arg index: Index pattern