angular - tslint import is declared but its value is never read false positive

Question

In my ionic project ts code I use Refresher from ionic-angular

import { NavController, Refresher } from 'ionic-angular';
...
export class myClass {
  refresh: BehaviorSubject<{ searchTerm: string; refresher: Refresher }>;
...

However I get the error 'Refresher' is declared but its value is never read. If I delete the import the code obviously doesn't compile.

What is the underlying cause here ? I know how to ignore the error and I don't want to do that, I want to actually understand and fix it.

Answer 1

等待大神答复