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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 run_xenon( workflow, *, machine, worker_config, n_processes, deref=False, verbose=False):
 """Run the workflow using a number of online Xenon workers. :param workflow: |Workflow| or |PromisedObject| to evaluate. :param machine: The |Machine| instance. :param worker_config: Configuration of the pilot job :param n_processes: Number of pilot jobs to start. :param deref: Set this to True to pass the result through one more encoding and decoding step with object dereferencing turned on. :returns: the result of evaluating the workflow """


    dynamic_pool = DynamicPool(machine)

    for i in range(n_processes):
        cfg = copy(worker_config)
        cfg.name = 'xenon-{0:02}'.format(i)
        dynamic_pool.add_xenon_worker(cfg)

    job_keeper = JobKeeper()
    S = Scheduler(job_keeper=job_keeper, verbose=verbose)

    result = S.run(
        dynamic_pool, get_workflow(workflow)
    )

    dynamic_pool.close_all()

    if deref:
        return worker_config.registry().dereference(result, host='scheduler')
    else:
        return result