code: def __init__(self, stuff, name):
      super().__init__(name)
      self.stuff = stuff
  
imports: import numpy
  import pytest
  import tensorflow
  from tensorflow.keras.metrics import MeanAbsoluteError, TrueNegatives, Metric
  from tensorflow_addons.testing.serialization import check_metric_serialization
label_desc: Use image node_id 1 to create a new MyDummyMetric object from inherited base classes: Metric with example: obj = MyDummyMetric(stuff, name)