sanitize method for Block Tool seems to be typed wrong

[adaptedbee]

Case 1:

In Block Tool types, sanitize should return SanitizerConfig (which is object with tag names as keys). Examples in SanitizerConfig are also written for fields with tag names as keys.

Case 2:

In documentation, it returns object with 'url' and 'caption' keys.
Same behavior in other official plugins, such as paragraph, quote etc.
And unfortunately, in that situation I can't use function as value for tag name, because tag name here becomes typed as 'attr'.

Editor.js version: 2.30.8

I can't understand which of that cases is right or wrong.
Is there any correct way to use function for sanitizing tag?