Bad definition of NotFoundError function type in index.d.ts

[igorvolnyi]

Here is what compiler says:

node_modules/join-js/index.d.ts:21:3 - error TS1038: A 'declare' modifier cannot be used in an already ambient context.

21   declare function NotFoundError(message?: string): void;
     ~~~~~~~
node_modules/join-js/index.d.ts:25:20 - error TS2749: 'NotFoundError' refers to a value, but is being used as a type here. Did you mean 'typeof NotFoundError'?

25     NotFoundError: NotFoundError