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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 _extract_method(method):
 """ Make a timeseries-formatted version of model method data :param dict method: Method data :return dict _method: Method data, formatted """

    _method = {}
    for k,v in method.items():
        _method["method_" + k] = v
    return _method