code: def test_single_wired_layers(self):
      shape = (2, 3, 4)
      a = KerasTensor(shape=shape)
      a_layer = DummyLayer()
      node1 = Node(a_layer, outputs=a, call_args=(), call_kwargs={})
  
      b = KerasTensor(shape=shape)
      x = KerasTensor(shape=shape)
      kwargs = {"x": x}
      args = (a,)
      b_layer = DummyLayer()
      node2 = Node(
          b_layer, outputs=b, call_args=args, call_kwargs=kwargs
      )
  
      self.assertEqual(node1.is_input, True)
      self.assertEqual(node2.is_input, False)
  
      self.assertEqual(node1.operation, a_layer)
      self.assertEqual(node2.operation, b_layer)
  
      self.assertEqual(node1.output_tensors[0], a)
      self.assertEqual(node1.output_tensors[0].shape, shape)
  
      self.assertEqual(a_layer._inbound_nodes[0], node1)
      self.assertEqual(a_layer._outbound_nodes[0], node2)
  
      self.assertEqual(b_layer._inbound_nodes[0], node2)
      self.assertEqual(node2.parent_nodes[0], node1)
  
      self.assertEqual(node2.input_tensors, [a, x])
      self.assertEqual(node2.arguments.kwargs, kwargs)
      self.assertEqual(node2.arguments.args, args)
  
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 2 for calling the NodeTest obj's underlying member method code with example usage: obj.test_single_wired_layers() without return types