code: def _default_metric(self, type_):
      return self._default_metrics_.get(type_)
  
file_path: h2o-3/h2o-py/h2o/model/extensions/scoring_history.py
imports: from h2o.exceptions import H2OValueError
  from h2o.plot import decorate_plot_result, get_matplotlib_pyplot, RAISE_ON_FIGURE_ACCESS
  from h2o.utils.shared_utils import can_use_pandas
  from h2o.utils.typechecks import assert_is_type
label_desc: Use image node_id 1 for calling the ScoringHistory obj's underlying member method code with example usage: obj._default_metric(type_) and returns: self