def share(self, data=None, time=None):
if data is None and time is None:
raise ValueError("kwarg data or time required.")
with self.lock:
if time is not None:
self.__sharetime = Validation.datetime_check_convert(time, allow_none=True)
if SHARETIME not in self._changes:
self._changes.append(SHARETIME)
if data is not None:
self.__sharedata = data
if SHAREDATA not in self._changes:
self._changes.append(SHAREDATA)
