code: def get_mp_context():
      return multiprocessing.get_context("forkserver")
  
file_path: tensorflow-upstream/tensorflow/dtensor/python/tests/test_backend_util.py
imports: import multiprocessing
  import os
  from tensorflow.dtensor.python import accelerator_util
  from tensorflow.dtensor.python import config
  from tensorflow.dtensor.python import layout
  from tensorflow.dtensor.python.tests.test_backend_name import DTENSOR_TEST_UTIL_BACKEND
  from tensorflow.python.platform import test
label_desc: Use image node_id 3 for calling a global function with example usage: get_mp_context() and returns: multiprocessing