import { NgModule } from '@angular/core' ; import { CommonModule } from '@angular/common' ; import { MdcIconModule } from '@angular-mdc/web/icon' ; import { MdcIconButton , MdcIconOn } from './icon-button' ; const ICON_BUTTON_DECLARATIONS = [ MdcIconButton , MdcIconOn ] ; @ NgModule ( { imports : [ CommonModule , MdcIconModule ] , exports : [ ... ICON_BUTTON_DECLARATIONS , MdcIconModule ] , declarations : ICON_BUTTON_DECLARATIONS } ) export class MdcIconButtonModule { }