code: def _model(self):
      inputs = tf.keras.layers.Input(shape=(3,))
      outputs = tf.keras.layers.Dense(2)(inputs)
      model = tf.keras.models.Model(inputs=inputs, outputs=outputs)
      model.compile(optimizer="Adam", loss="mse", metrics=["accuracy"])
      return model
  
file_path: cloud/src/python/tensorflow_cloud/tuner/tests/integration/cloud_fit_integration_test.py
imports: import os
  from typing import Text
  import uuid
  from absl import logging
  import numpy
  import tensorflow
  from tensorflow_cloud.tuner import cloud_fit_client
  from tensorflow_cloud.tuner import cloud_fit_utils
  from tensorflow_cloud.utils import google_api_client
label_desc: Use image node_id 4 for calling the CloudFitIntegrationTest obj's underlying member method code with example usage: obj._model() and returns: model