code: def test_simple_case(self):
      shape = (2, 3, 4)
      a = KerasTensor(shape=shape)
      a_layer = DummyLayer()
      node = Node(a_layer, outputs=a, call_args=(), call_kwargs={})
  
      self.assertEqual(node.is_input, True)
  
      self.assertEqual(node.output_tensors[0], a)
      self.assertEqual(node.output_tensors[0].shape, shape)
  
file_path: keras/keras/ops/node_test.py
imports: import numpy
  from keras import Layer
  from keras import testing
  from keras.backend import KerasTensor
  from keras.ops.node import Node
label_desc: Use image node_id 1 for calling the NodeTest obj's underlying member method code with example usage: obj.test_simple_case() without return types