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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 unwrap_querystring_lists(obj):
 """Convert responder querystring params, pulling values out of list if there's only one. """

    new_dict = {
        key: (obj[key][0]
              if len(obj[key]) == 1 else obj[key])
        for key in obj.keys()
        }
    return new_dict