code: def do_job(self):
      if self._job is not None:
          self._job()
  
file_path: ray/release/benchmarks/distributed/test_scheduling.py
imports: import ray
  import argparse
  from time import time, sleep
  from math import floor
  from ray._private.test_utils import safe_write_to_results_json
  import ray._private.test_utils
label_desc: Use image node_id 3 for calling the SimpleActor obj's underlying member method code with example usage: obj.do_job() without return types