code: def __exit__(self, *args, **kwargs):
      set_global_attribute("tracking_on", self.original_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 DotNotTrackScope obj's underlying member method code with example usage: obj.__exit__() without return types