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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 dev(endpoint, **kwargs):
 """ Use an endpoint and any additional keyword arguments rather than one of the pre-defined cities. Similar to the `city` function, but useful for development. """

    kwargs['endpoint'] = endpoint
    os.environ['OPEN311_CITY_INFO'] = dumps(kwargs)
    return Three(**kwargs)