def __init__(self, resource_type, *args, **kw):
super(BasicSession, self).__init__(*args, **kw)
if resource_type == 'onem2m':
self.cinType = Cin
else:
raise DBError('no valid type: %s' % type)
def _filter_latest(collection):
if not collection:
raise DBError("ContentInstance collection is empty")
return collection[-1]