parameters: (self)
return_statement: return self._best_value
docstring: Returns the best early stopping metric value found so far.
docstring_summary: Returns the best early stopping metric value found so far.
docstring_tokens: Returns the best early stopping metric value found so far .
function: def best_value(self):
      """Returns the best early stopping metric value found so far."""
      return self._best_value
function_tokens: def best_value ( self ) : return self . _best_value