Support void as unknownType

[vitorcamachoo]

We work in an API, and in some cases, it returns an empty payload (404, 202, etc.), and for those cases, we want the void type. Currently, the Kubb configuration only allows unknown and any.
We are migrating from Orval to Kubb, and for those situations, Orval handles them as void which is the most correct in our use case.

Example:
When using a union in Typescript, in which one of the types is unknown or any, the return type is unknown or any.

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Last updated at: 2025-03-04 17:00:18 CET

[vitorcamachoo]

Please let me know if there is anything missing in the code.

[stijnvanhulle]

@vitorcamachoo Thanks for opening a pr, really appreciate your work here.
Could you also update the types for unknownType in https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-zod/src/types.ts#L50-L50, https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-faker/src/types.ts#L53-L53 and https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-ts/src/types.ts#L58-L58.

And next to that, updating the docs to also include the new void option.

[stijnvanhulle]

@all-contributors please add @vitorcamachoo for code

[allcontributors]

@stijnvanhulle

I've put up a pull request to add @vitorcamachoo! 🎉

[vitorcamachoo]

@vitorcamachoo Thanks for opening a pr, really appreciate your work here. Could you also update the types for unknownType in https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-zod/src/types.ts#L50-L50, https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-faker/src/types.ts#L53-L53 and https://github.com/kubb-project/kubb/blob/1f199b882306088fa10b4b59662698ac45aeafca/packages/plugin-ts/src/types.ts#L58-L58.

And next to that, updating the docs to also include the new void option.

Thank you, @stijnvanhulle, for your feedback.