Iblis Lin

Hi @wbarnha , I got KeyDeocdeError if I use the `group_by` method: ```python import faust app = faust.App( 'hello-world', broker='kafka://localhost:9092', ) class Foo(faust.Record): cate: str greetings_topic = app.topic('greetings', value_type=Foo, key_serializer='pickle')...

sure, ```python [2023-06-08 10:10:59,752] [1869829] [ERROR] [^----Agent*: __main__.f]: Crashed reason=KeyDecodeError('Invalid base64-encoded string: number of data characters (1) cannot be 1 more than a multiple of 4') Traceback (most recent call...

Ah, okay. (well, in my case, I cannot change the types of message key, since the producer programs are not controlled by me. and there are tons of streams using...

Thanks @Eugeny. You're a lifesaver. I ran into another issue while trying tests with Vitest, seems the `TestBed` will put a dummy value for `templateUrl`, e.g. `ng:///MyComponent2/template.html`. so I just...