message: Update typings for RenderTextureSystem
diff: @@ -61,9 +61,9 @@ export default class RenderTextureSystem extends System
  /**
  * Bind the current render texture
  - * @param {PIXI.RenderTexture} renderTexture
  - * @param {PIXI.Rectangle} sourceFrame
  - * @param {PIXI.Rectangle} destinationFrame
  + * @param {PIXI.RenderTexture} [renderTexture] - RenderTexture to bind, by default its `null`, the screen
  + * @param {PIXI.Rectangle} [sourceFrame] - part of screen that is mapped to the renderTexture
  + * @param {PIXI.Rectangle} [destinationFrame] - part of renderTexture, by default it has the same size as sourceFrame
  */
  bind(renderTexture = null, sourceFrame, destinationFrame)
  {
  