text: // @flow
  
  // eslint-disable-next-line import/no-unresolved
  import {Container} from './pixi';
  
  type ViewportSettingType = {|
      screenWidth: number,
      screenHeight: number,
      worldWidth: number,
      worldHeight: number,
  |};
  
  declare module 'src/pixi-viewport' {
      declare export default class Viewport extends Container {
          constructor(settings: ViewportSettingType): Viewport,
          resize(
              screenWidth: number,
              screenHeight: number,
              worldWidth: number,
              worldHeight: number
          ): void,
      }
  }
  