@start_date.setter
def start_date(self, val):
    if (val is not None):
        self._params['datea'] = sanitize_date(val)
        self._start_date = val
    else:
        self._start_date = None
@start_date.setter
def start_date(self, val):
    if (val is not None):
        self._params['datea'] = sanitize_date(val)
        self._start_date = val
    else:
        self._start_date = None