Question: is it possible to use the @task decorator on a class method?

I don’t believe so, as Prefect will probably complain that

self

is a missing argument

Yep. That is what we are running into

I’d recommend subclassing your custom class as a Task:

class MyPrefectClass(MyCustomClass, Task):
    ...
    def run(self, *args, **kwags):
        # same logic as the method you wanted to decorate

that way all of your statefulness that you are relying on the class for is tracked on the

Task

object