I'm submitting a ...

[ ] Regression (behavior that used to work and stopped working in a new release)
[ ] Bug report 
[ ] Feature request
[x] Documentation issue or request
[ ] Support request

Current behavior ...

The documentation about the parameter formState in the method control(..) and the parameter controlsConfig in the method group(..) (see line reference) doesn't explain very well how to set it. Additionally, the type hints has presence of anys and makes it harder to understand.

Expected behavior

I propose the follow type hints changes to clarify the situation.

For the formState type hint:
string | { value: string, disabled: boolean }

For the controlsConfig type hint:
{ [key: string]: [string | {value: string, disabled: boolean}, ...any[]] }