#3831 [BUG] undefined optional argument in a dynamic task is a `Promise`, should be `None` Issue created by alekpikl Describe the bug An empty

Optional[SomeType] = None

argument in a

dynamic

task is a

Promise

during execution. A reproducer:

from typing import Optional

from flytekit import dynamic, workflow


@dynamic
def my_task(opt: Optional[int] = None):
    print(opt)  # Promise(node:.opt)


@workflow
def workflow():
    my_task()

In

my_task,

opt

is a

Promise(node:.opt).

Works as expected locally but not in a cluster. Expected behavior The argument should be

None

during execution. Additional context to reproduce No response Screenshots No response Are you sure this issue hasn't been raised already? ☑︎ Yes Have you read the Code of Conduct? ☑︎ Yes flyteorg/flyte