`onInputChange` documentation does not reflect behavior

[7PH]

Documentation of the onInputChange return type does not reflect its actual return type, and what can be done with it

In the doc, return type is void

But while implementing my use-case, I found out that this is actually possible using the return type of this same method, for example here. This is also shown in this example in this same repository.

It seems to me that the documentation should be aligned with the real return value of this method, which is string | undefined AFAIK

WDYT? If you agree with this, I am eager to create a PR for it.