Does it need to add two return value here?

[yushihang]

https://github.com/0xPolygonID/c-polygonid/blob/0e823b3f014c3cc5553c828c9b5d98fe048bbf41/inputs_sig.go#L419C1-L439C17

Line 422 should be ?

return out, err

[olomix]

It's not necessary, as those names are taken from the named return variables. However, for consistency with other places, it would look nicer. Thank you.