code: def _find_multiline(line, colon):
      if colon == -1:
          return None
      line = line[colon + 1 :]
      while line.startswith(" "):
          line = line[1:]
      if line.startswith("<<"):
          line = line[2:]
          return line
      return None
  
imports: import json
  import logging
  import os
  import google.protobuf
  from tensorflow.core.framework import api_def_pb2
  from tensorflow.core.framework import op_def_pb2
  from tensorflow.core.framework import types_pb2
label_desc: Use image node_id 3 for calling a global function with example usage: _find_multiline(line, colon) and returns: None, None, line