docstr: Find the first trace of an op that belongs to the TF Python library.
docstr_tok: ["Find","the","first","trace","of","an","op","that","belongs","to","the","TF","Python","library","."]
code: def _findFirstTraceInsideTensorFlowPyLibrary(self, op):
      """Find the first trace of an op that belongs to the TF Python library."""
      for trace in op.traceback:
          if source_utils.guess_is_tensorflow_py_library(
              trace.filename
          ):
              return trace
  
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 4 for calling the SendTracebacksTest obj's underlying member method code with example usage: obj._findFirstTraceInsideTensorFlowPyLibrary(op) and returns: trace