code: def _get_default_stopping_metric(self):
      return self.eval_metric
  
imports: import logging
  from autogluon.common.features.types import S_STACK
  from ...constants import MULTICLASS, QUANTILE, SOFTCLASS
  from ..abstract.abstract_model import AbstractModel
  from .ensemble_selection import EnsembleSelection, SimpleWeightedEnsemble
label_desc: Use image node_id 14 for calling the GreedyWeightedEnsembleModel obj's underlying member method code with example usage: obj._get_default_stopping_metric() and returns: self