class_docstr: Wraps an `Oracle` on a worker to send requests to the chief.
class_docstr_tok: ["Wraps","an","`","Oracle","`","on","a","worker","to","send","requests","to","the","chief","."]
code: def get_best_trials(self, num_trials=1):
      response = self.stub.GetBestTrials(
          protos.get_service().GetBestTrialsRequest(
              num_trials=num_trials
          ),
          wait_for_ready=True,
          timeout=TIMEOUT,
      )
      return [
          trial_module.Trial.from_proto(trial)
          for trial in response.trials
      ]
  
file_path: keras-tuner/keras_tuner/distribute/oracle_client.py
imports: import os
  import grpc
  from keras_tuner import protos
  from keras_tuner.engine import hyperparameters
  from keras_tuner.engine import trial
label_desc: Use image node_id 9 for calling the OracleClient obj's underlying member method code with example usage: obj.get_best_trials(num_trials) and returns: unknown