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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def real_main(release_url=None, tests_json_path=None, upload_build_id=None, upload_release_name=None):
 """Runs diff_my_images."""

    coordinator = workers.get_coordinator()
    fetch_worker.register(coordinator)
    coordinator.start()

    data = open(FLAGS.tests_json_path).read()
    tests = load_tests(data)

    item = DiffMyImages(
        release_url,
        tests,
        upload_build_id,
        upload_release_name,
        heartbeat=workers.PrintWorkflow)
    item.root = True

    coordinator.input_queue.put(item)
    coordinator.wait_one()
    coordinator.stop()
    coordinator.join()