How to use react-devtools-core - 3 common examples

// };
// mySocket.onerror = function(ev: Event){
//     console.error("[SOCKET] Socket had an error", ev);
// };

/* https://github.com/facebook/react-devtools/issues/601#issuecomment-290611996
 * https://github.com/sidorares/react-x11/blob/master/src/DevToolsIntegration.js */
(global as any).__DEV__ = true;

// import * as React from "react";
// Object.defineProperty(window, 'React', {
//     value: React
// });

const {connectToDevTools} = require('react-devtools-core');
const wsInstance = connectToDevTools({
    host: 'localhost',
    port: 8097,
    /* This does NOT work */
    // websocket: (global as any).WebSocket,
    resolveRNStyle: null,
    isAppActive: () => true,
});

console.log(`[app.ts] Got wsInstance:`, wsInstance);
console.log(`[app.ts] wsInstance's onopen was:`, wsInstance.onopen);

(window as any).__REACT_DEVTOOLS_GLOBAL_HOOK__.on('react-devtools', (agent: any) => {
    console.log(`Got 'react-devtools' callback!`);
    // let highlightedNodes: any[] = [];
    // agent.on('highlight', data => {
    //     highlight(data.node, data.name);

async initializeDevTools(devToolsNode: HTMLElement) {
    const port = await getPort({port: 8097}); // default port for dev tools
    ReactDevToolsStandalone.setContentDOMNode(devToolsNode).startServer(port);
    const device = await this.getDevice();
    if (device) {
      const host =
        device.deviceType === 'physical'
          ? address.ip()
          : device instanceof AndroidDevice
          ? '10.0.2.2' // Host IP for Android emulator host system
          : 'localhost';
      this.client.call('config', {port, host});

      if (['quest', 'go', 'pacific'].includes(device.title.toLowerCase())) {
        const device = await this.getDevice();
        (device as AndroidDevice).reverse([port, port]);
      }
    }
  }

require('electron').shell.openExternal(link.href);
      });

      const $localhost = $("#localhost");
      $localhost.innerText = `