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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(entry_point, drivers, loop = None):
    ''' This is a runner wrapping the cyclotron "run" implementation. It takes
    an additional parameter to provide a custom asyncio mainloop.
    '''
    program = setup(entry_point, drivers)
    dispose = program.run()
    if loop == None:
        loop = asyncio.get_event_loop()

    loop.run_forever()
    dispose()