parserFunctionDeclaration1.d.ts(1,18): error TS7010: 'F', which lacks return-type annotation, implicitly has an 'any' return type.


==== parserFunctionDeclaration1.d.ts (1 errors) ====
    declare function F();
                     ~
!!! error TS7010: 'F', which lacks return-type annotation, implicitly has an 'any' return type.