code: def get_config(self):
      return super().get_config()
  
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 3 for calling the MyDummyMetric obj's underlying member method code with example usage: obj.get_config() and returns: super