code: def popitem(self):
      key, value = super().popitem()
      if self.tracker:
          self.tracker.untrack(value)
      return key, 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 5 for calling the TrackedDict obj's underlying member method code with example usage: obj.popitem() and returns: key,  value