code: def line_number_above():
      return tf_inspect.stack()[1][2] - 1
  
imports: import os
  import traceback
  import grpc
  from tensorflow.core.debug import debug_service_pb2
  from tensorflow.python.client import session
  from tensorflow.python.debug.lib import grpc_debug_test_server
  from tensorflow.python.debug.lib import source_remote
  from tensorflow.python.debug.lib import source_utils
  from tensorflow.python.framework import ops
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import resource_variable_ops
  from tensorflow.python.ops import variables
  from tensorflow.python.platform import googletest
  from tensorflow.python.platform import test
  from tensorflow.python.util import tf_inspect
label_desc: Use image node_id 1 for calling a global function with example usage: line_number_above() and returns: unknown