docstr: The current best model.
docstr_tok: ["The","current","best","model","."]
code: def best_model(self):
      """The current best model."""
      return self.models[self._best_model_idx]
  
imports: from __future__ import annotations
  import abc
  import math
  from river import metrics
  from river.model_selection.base import ModelSelectionClassifier, ModelSelectionRegressor
label_desc: Use image node_id 3 for calling the SuccessiveHalving obj's underlying member method code with example usage: obj.best_model() and returns: self