code: def GetBestTrials(self, request, context):
      trials = self.oracle.get_best_trials(request.num_trials)
      return protos.get_service().GetBestTrialsResponse(
          trials=[trial.to_proto() for trial in trials]
      )
  
imports: import os
  import time
  from concurrent import futures
  import grpc
  from keras_tuner import protos
  from keras_tuner.engine import hyperparameters
  from keras_tuner.engine import trial
  from keras_tuner.engine.oracle import synchronized
label_desc: Use image node_id 8 for calling the OracleServicer obj's underlying member method code with example usage: obj.GetBestTrials(request, context) and returns: protos