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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 parse_simple_duration(duration):
 """ Attepmt to parse an ISO8601 formatted duration, using a naive calculation. Accepts a ``duration`` which must be an ISO8601 formatted string, and assumes 365 days in a year and 30 days in a month for the calculation. Returns a ``datetime.timedelta`` object. """

    elements = _parse_duration_string(_clean(duration))

    if not elements:
        raise ParseError()

    return _timedelta_from_elements(elements)