Easier conditional none check

[wild-endeavor]

Describe the issue

This sample code should work

def test_condition_is_none2():
    @dataclass
    class MyDataClass(DataClassJSONMixin):
        a: int
        b: str

    @task
    def maybe_str(a: int) -> typing.Optional[MyDataClass]:
        if a > 5:
            return MyDataClass(a=a, b="hello")
        return None

    @task
    def failed() -> int:
        return 10

    @task
    def success() -> int:
        return 20

    @workflow
    def decompose_unary() -> int:
        result = maybe_str(a=6)
        return conditional("test").if_(result.is_none()).then(success()).else_().then(failed())

    xx = decompose_unary()
    print(xx)

Currently it is producing an error

ValueError: Only primitive values can be used in comparison

While it makes sense that propeller in the back can only check primitives, I think we can make an exception for optional/none.

Are you sure this issue hasn't been raised already?

• Yes

Have you read the Code of Conduct?

• Yes

[runllm]

To create a housekeeping issue in Flyte, you can use the housekeeping issue template. Here is a sample issue based on your input:

name: Housekeeping
description: Maintenance and cleanup tasks that need to be performed may include tech debt, library upgrades, CI/CD improvements, etc.
title: "[Housekeeping] dsaf"
labels: housekeeping
body:
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    id: issue-description
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    attributes:
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      value: "fdsa"
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Would you like more details on how to submit this issue on GitHub?

Sources:

• Housekeeping Issue Template

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