message: refactor(helpers): fix typings
diff: @@ -17,7 +17,6 @@ import { concat } from 'rxjs/observable/concat'
  import { map } from 'rxjs/operators/map'
  import { fromEventPattern } from 'rxjs/observable/fromEventPattern'
  import { mergeConfig } from '@/app-config/merge-config'
  -import { isGeneratedKey } from '@/_helpers/uniqueKey'
  export interface StorageChanged<T> {
  newValue: T,
  