class_docstr: Class for testing GRU layer
class_docstr_tok: ["Class","for","testing","GRU","layer"]
code: def test_keras2_gru_layer_stress(self):
      self._test_gru_layer(keras_major_version=2)
  
imports: import unittest
  import numpy
  import os
  import shutil
  import tempfile
  import itertools
  import coremltools
  from coremltools._deps import _HAS_KERAS_TF, _HAS_KERAS2_TF
  from coremltools.models.utils import _macos_version, _is_macos
  import pytest
label_desc: Use image node_id 5 for calling the GRULayer obj's underlying member method code with example usage: obj.test_keras2_gru_layer_stress() without return types