angularjs – Erro Angular 7: “cannot find name routes”

Olá, sou nova em angular e estou tentando criar RouterModule.forRoot(routes, {useHash: true}), dentro da minha classe app.module.ts, porém ele não reconhece routes,abaixo segue meu código com a implementação.
o que estou fazendo de errado?

import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';

import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';
import { EmployeeListComponent } from './employee-list/employee-list.component';
import { EmployeeNewComponent } from './employee-new/employee-new.component';
import {FormsModule} from '@angular/forms';
import { RouterModule } from '@angular/router';
import {Routes} from '@angular/router'
@NgModule({
  declarations: (
    AppComponent,
    EmployeeListComponent,
    EmployeeNewComponent
  ),
  imports: (
    BrowserModule,
    AppRoutingModule,
    FormsModule,
    RouterModule.forRoot(routes, {useHash: true})
  ),
  providers: (),
  bootstrap: (AppComponent)
})
export class AppModule { }