Cannot pass dict as a parameter 'data' to Completed state on Prefect v3.0.0rc16 about prefect HOT 4 OPEN

thanks for the issue @ihor-ramskyi-globallogic - we'll take a look here

just out of curiosity, what's your use case for passing data to a Completed state? i.e. how did you use data downstream in 2.x?

from prefect.

note to self, here's a more concise repro

In [1]: from prefect.states import Completed

In [2]: Completed(data={"A": 1})
...
File ~/github.com/prefecthq/prefect/src/prefect/results.py:407, in BaseResult.__new__(cls, **kwargs)
    405     return super().__new__(subcls)
    406 else:
--> 407     return super().__new__(cls)

TypeError: Can't instantiate abstract class BaseResult without an implementation for abstract methods 'create', 'get'

from prefect.

@zzstoatzz seems like in this case we should dispatch to an UnpersistedResult type in the creation of the BaseResult?

from prefect.

thanks for the issue @ihor-ramskyi-globallogic - we'll take a look here

just out of curiosity, what's your use case for passing data to a Completed state? i.e. how did you use data downstream in 2.x?

I return Failed if task should be failed for any reason - and for unified approach, I use Completed otherwise. So, I still have to return data from the task, and I put it as data of Completed state.

However, I cannot use type dict for data for Failed state anyways... Because it says it cannot resolve dict in exception.

from prefect.