code: def clear_tower0_name_scope():
      ns = tf.get_default_graph().get_name_scope()
      if ns == "tower0":
          with tf.name_scope("/"):
              yield
      else:
          yield
  
file_path: tensorpack/examples/keras/mnist-keras.py
imports: import tensorflow
  from tensorflow import keras
  from contextlib import contextmanager
  from tensorpack import *
  from tensorpack.contrib.keras import KerasPhaseCallback
  from tensorpack.dataflow import dataset
  from tensorpack.utils.argtools import memoized
  from tensorpack.utils.gpu import get_num_gpu
  from tensorpack.tfutils.tower import get_current_tower_context
label_desc: Use image node_id 1 for calling a global function with example usage: clear_tower0_name_scope() without return types