_stream = id => new Handler(handlerLog, resolve(AggregateId(id)));
_stream = id => new Handler(handlerLog, resolve(Event.For(id)));
_stream = id => new Handler(handlerLog, resolve(CategoryId(id)));
_stream = id => new Handler(handlerLog, resolve(AggregateId(id)));
_stream = id => new Handler(handlerLog, resolve(Event.For(id)));
_stream = id => new Handler(handlerLog, resolve(CategoryId(id)));