code: def _NotNone(v):
      if v is None:
          return _Message("None")
      else:
          return v
  
imports: import numpy
  from tensorboard.compat.proto import tensor_pb2
  from tensorboard.compat.tensorflow_stub import dtypes, compat, tensor_shape
label_desc: Use image node_id 21 for calling a global function with example usage: _NotNone(v) and returns: _Message, v