code: def add(self, value):
      if self.tracker:
          self.tracker.track(value)
      super().add(value)
  
imports: from functools import wraps
  from keras.backend.common.global_state import get_global_attribute
  from keras.backend.common.global_state import set_global_attribute
  from keras.utils import python_utils
label_desc: Use image node_id 2 for calling the TrackedSet obj's underlying member method code with example usage: obj.add(value) without return types