"a_dir", "another_dir"};
  EXPECT_EQ(children.size(), filenames.size() + dirnames.size());
  for (const auto& child : expected_children)
    EXPECT_NE(std::find(children.begin(), children.end(), child),
              children.end());
}

TEST_P(ModularFileSystemTest, TestGetChildrenEmpty) {
  const std::string dirpath = GetURIForPath("dir");

    mutex_lock graph_lock(g->mu);

    const int first_new_node_id = g->graph.num_node_ids();

    string prefix_cmp;
    const char* child_scope_name;
    if (prefix == nullptr) {
      child_scope_name = "gradients";
    } else {
      prefix_cmp = string(prefix) + "/";
      // The operation should fail if the provided name prefix has already been
      // used in this graph

      var_name='ANDROID_NDK_HOME',
      var_default=default_ndk_path,
      ask_for_var='Please specify the home path of the Android NDK to use.',
      check_success=valid_ndk_path,
      error_msg=('The path %s or its child file "source.properties" '
                 'does not exist.'))
  write_action_env_to_bazelrc('ANDROID_NDK_HOME', android_ndk_home_path)
  write_action_env_to_bazelrc(
      'ANDROID_NDK_API_LEVEL',

  // Returns tensor (full) type.
  // While there is no immediate plan to deprecate dtype and shape in favor
  // of only using full type type information, this is a future possibility.
  //
  // Note that map_dtype_to_child_of_tensor() from core/framework/types.h
  // can be used to set a FullTypeDef based on dtype in a derived class if
  // appropriate.
  virtual tensorflow::FullTypeDef FullType() const = 0;