code: def test_get_source_inputs_return_input_tensor(self):
      inputs = input_layer.Input(shape=(10,))
      self.assertIs(
          operation_utils.get_source_inputs(inputs)[0], inputs
      )
  
imports: from keras import backend
  from keras import ops
  from keras import testing
  from keras.layers.core import input_layer
  from keras.ops import operation_utils
label_desc: Use image node_id 2 for calling the OperationUtilsTest obj's underlying member method code with example usage: obj.test_get_source_inputs_return_input_tensor() without return types