code: def update(self, mapping):
      if self.tracker:
          mapping = {
              k: self.tracker.track(v) for k, v in mapping.items()
          }
      super().update(mapping)
  
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 3 for calling the TrackedDict obj's underlying member method code with example usage: obj.update(mapping) without return types