isolatedDeclarationErrorTypes1.ts(3,28): error TS2307: Cannot find module 'foo' or its corresponding type declarations.


==== isolatedDeclarationErrorTypes1.ts (1 errors) ====
    // https://github.com/microsoft/TypeScript/issues/60192
    
    import { Unresolved } from "foo";
                               ~~~~~
!!! error TS2307: Cannot find module 'foo' or its corresponding type declarations.
    
    export const foo1 = (type?: Unresolved): void => {};
    export const foo2 = (type?: Unresolved | undefined): void => {};
    export const foo3 = (type: Unresolved): void => {};
    