import { Observable } from 'rxjs' ; import { ListItemInjectionService } from 'src/ts/content/injection/list-item-injection-service' ; import { ListenEngagementInjectionService } from 'src/ts/content/injection/listen-engagement-injection-service' ; import { UserInfoBarInjectionService } from 'src/ts/content/injection/user-info-bar-injection-service' ; export const InjectionService = { injectDownloadButtons ( onUnload$ ) { ListenEngagementInjectionService . injectDownloadButtons ( onUnload$ ) ; ListItemInjectionService . injectDownloadButtons ( onUnload$ ) ; UserInfoBarInjectionService . injectDownloadButtons ( onUnload$ ) ; } , } ;