bug: type declaration for eslint flat config

[TheElegantCoding]

the export of the package is type any and dont have support for types

[ljharb]

This plugin has no types in it - maybe there's a DT package - and we also don't yet suppoer flat config.

See #891.

[TheElegantCoding]

i think for eslint flat config it is needed, i know maybe not now, but when the package has support

[ljharb]

Types aren't ever needed because they're not part of JavaScript. If you're using TS, you can use DefinitelyTyped.