/a.ts(7,11): error TS6133: '_ns' is declared but its value is never read.
/a.ts(8,9): error TS6133: '_' is declared but its value is never read.


==== /a.ts (2 errors) ====
    import * as _ from "./a";
    
    for (const _ of []) { }
    
    for (const _ in []) { }
    
    namespace _ns {
              ~~~
!!! error TS6133: '_ns' is declared but its value is never read.
        let _;
            ~
!!! error TS6133: '_' is declared but its value is never read.
        for (const _ of []) { }
    
        for (const _ in []) { }
    }
    