def check_disposed(self):
if self.is_disposed:
raise DisposedException(
'Trying to access an already disposed object')
def check_disposed(self):
if self.is_disposed:
raise DisposedException()
def _subscribe(self, observer: Observer) -> Disposable:
if self.is_disposed:
return Observable.throw(DisposedException('Trying to access an already disposed object')) \
.subscribe(observer)
else:
return self._collectionChanges.subscribe(observer)
