How to use the chrome-launcher.Launcher.getInstallations function in chrome-launcher

    test: () => ChromeLauncher.getInstallations().length > 0,
  },

headful: {type: 'boolean', description: 'Run with a headful Chrome'},
    additive: {type: 'boolean', description: 'Skips clearing of previous collect data'},
    url: {
      description:
        'A URL to run Lighthouse on. Use this flag multiple times to evaluate multiple URLs.',
    },
    staticDistDir: {
      description: 'The build directory where your HTML files to run Lighthouse on are located.',
    },
    isSinglePageApplication: {
      description:
        'If the application is created by Single Page Application, enable redirect to index.html.',
    },
    chromePath: {
      description: 'The path to the Chrome or Chromium executable to use for collection.',
      default: process.env.CHROME_PATH || ChromeLauncher.getInstallations()[0],
    },
    puppeteerScript: {
      description:
        'The path to a script that manipulates the browser with puppeteer before running Lighthouse, used for auth.',
    },
    puppeteerLaunchOptions: {
      description: 'The object of puppeteer launch options',
    },
    startServerCommand: {
      description: 'The command to run to start the server.',
    },
    startServerReadyPattern: {
      description: 'String pattern to listen for started server.',
      type: 'string',
      default: 'listen|ready',
    },