In the root level of your testing folder, install the @axe-core/watcher package and all of its dependencies using npm or your preferred package manager (for example, yarn or pnpm).
```
npm install --save-dev @axe-core/watcher
```
In your wdio.config.js file, import the wdioTestRunner() function, the wrapWdio() function, and the WdioController class from @axe-core/watcher:
```
const {
  wdioTestRunner,
  wrapWdio,
  WdioController
} = require('@axe-core/watcher')
```

Before exporting your WebdriverIO configuration, wrap it with a call to wdioTestRunner() while providing your API key:

exports.config = {
  // Your config options here...
}

// Becomes:

exports.config = wdioTestRunner({
  axe: {
    apiKey: process.env.API_KEY
  }, {
    // Your config options here...
  }
})

In your test setup code (typically in a before or beforeAll block), create an instance of the WdioController, and then wrap your browser object:
```
const controller = new WdioController(browser)
wrapWdio(browser, controller)
```
Finally, ensure all test results from axe Watcher are flushed out. To do this, add the following block of code to your test teardown code (typically in an afterFetch block):
```
afterEach(async () => {
  await controller.flush()
})
```