code: def _check_if_cpu(blob):
      """
      Check if the blob's name starts with '_gpu'.
  
      Args:
          blob: The blob to inspect
  
      Returns:
          Boolean representing whether this blob is associated with a gpu
      """
      return not blob.startswith("_gpu")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  import copy
  import logging
  import os
  import re
  from builtins import bytes
  from caffe2.proto import caffe2_pb2
  from caffe2.python import core, workspace
  from .proto.graph_pb2 import GraphDef
  from .proto.node_def_pb2 import NodeDef
  from .proto.tensor_shape_pb2 import TensorShapeProto
label_desc: Use image node_id 18 for calling a global function with example usage: _check_if_cpu(blob) and returns: unknown