class_docstr: Aggregator
code: def mapping_frame(self):
      if self._model_json is None:
          return None
      mj = self._model_json
      if (
          mj.get("output", {}).get("mapping_frame", {}).get("name")
          is not None
      ):
          mapping_frame_name = mj["output"]["mapping_frame"]["name"]
          return H2OFrame.get_frame(mapping_frame_name)
  
imports: from h2o.estimators.estimator_base import H2OEstimator
  from h2o.exceptions import H2OValueError
  from h2o.frame import H2OFrame
  from h2o.utils.typechecks import assert_is_type, Enum, numeric
label_desc: Use image node_id 25 for calling the H2OAggregatorEstimator obj's underlying member method code with example usage: obj.mapping_frame() and returns: None, H2OFrame