import { NgModule, ModuleWithProviders } from '@angular/core'; import { _MODULE_CONFIG } from './config/token'; import { ModuleConfig } from './config/module-config'; import { CallService } from './services/call.service'; const SERVICES = [CallService]; @NgModule({ declarations: [], imports: [], exports: [] }) export class UCapPromptApiModule { public static forRoot( config: ModuleConfig ): ModuleWithProviders { return { ngModule: UCapPromptApiModule, providers: [{ provide: _MODULE_CONFIG, useValue: config }, ...SERVICES] }; } }