How to use angular2gridster - 2 common examples

import { GridsterModule } from 'angular2gridster';
import { BrowserModule } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    GridsterModule.forRoot()
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

@NgModule({
  declarations: [
    AppComponent,
    DashboardComponent,
    EditorComponent,
    LoginComponent,
    RegisterComponent
  ],
  imports: [
    FormsModule,
    ReactiveFormsModule,
    CommonModule,
    BrowserModule,
    AppRoutingModule,
    CKEditorModule,
    GridsterModule.forRoot(),
    NgZorroAntdModule,
    HttpClientModule,
    NzIconModule,
    BrowserAnimationsModule,
    ServiceWorkerModule.register('ngsw-worker.js', { enabled: environment.production })
  ],
  providers: [
    { provide: NZ_I18N, useValue: en_US },
    { provide: HTTP_INTERCEPTORS, useClass: JwtInterceptor, multi: true },
    { provide: NZ_ICON_DEFAULT_TWOTONE_COLOR, useValue: '#00ff00' },
    { provide: NZ_ICONS, useValue: icons },
    AuthGuard
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }