@phaserjs/phaser/renderer/webgl1/WebGLRendererInstance.js

Phaser 4

import { RendererInstance } from "../RendererInstance";
export let instance;
export const WebGLRendererInstance = {
  get: () => {
    return instance;
  },
  set: (renderer) => {
    instance = renderer;
    RendererInstance.set(renderer);
  }
};