import { NgModule, ModuleWithProviders } from '@angular/core'; import { UctiProtocolService } from './services/ucti-protocol.service'; const SERVICES = [UctiProtocolService]; @NgModule({ declarations: [], imports: [], exports: [] }) export class UCapUctiProtocolModule { public static forRoot(): ModuleWithProviders { return { ngModule: UCapUctiProtocolModule, providers: [...SERVICES] }; } }