Removed call to isinstance().
@@ -126,7 +126,6 @@ class SequencedItemMapper(AbstractSequencedItemMapper[T_ev]):
def get_event_class_and_attrs(self, topic, state) -> Tuple[Type[T_ev], Dict]:
# Resolve topic to event class.
domain_event_class: Type[T_ev] = resolve_topic(topic)
- assert issubclass(domain_event_class, AbstractDomainEvent)
# Decrypt and decompress state.
if self.cipher:
