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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 memory_usage_psutil():
 """Return the current process memory usage in MB. """

    process = psutil.Process(os.getpid())
    mem = process.memory_info()[0] / float(2 ** 20)
    mem_vms = process.memory_info()[1] / float(2 ** 20)
    return mem, mem_vms