Hi! I'm wondering what is a good practice for accessing the resultant files (artifacts?) generated by a custom plugin? I have a target

mytarget(name='xxx')

, which generates some artifacts; I also have a rule that transforms the target into a custom object

MyTargetResult

which is simply a digest wrapper:

@rule
async def gen_result(tgt: Target) -> MyTargetResult:
    # implementation...

@dataclass(frozen=True)
class MyTargetResult:
    waveform: Digest

I also have a

goal_rule

that writes the

waveform

digest into some directory in the workspace. Now I want to create an

experimental_test_shell_command

target that depends on (reads files from) the

waveform

digest generated by the rule

gen_result

, what would be a good practice for doing this? I have full control over the rules/goals as well.