code: def test_children(self):
      root = base.Trackable()
      leaf = base.Trackable()
      root._track_trackable(leaf, name="leaf")
      (
          (current_name, current_dependency),
      ) = trackable_view.TrackableView.children(root).items()
      self.assertIs(leaf, current_dependency)
      self.assertEqual("leaf", current_name)
  
imports: from tensorflow.python.checkpoint import trackable_view
  from tensorflow.python.eager import test
  from tensorflow.python.trackable import base
label_desc: Use image node_id 1 for calling the TrackableViewTest obj's underlying member method code with example usage: obj.test_children() without return types