Message from admob about app-ads.txt. How will I perform the implementation

Advertisers stop applications without the app-ads.txt file When will advertisers stop applications? Some agencies and buyers have stopped spending on apps without app-ads.txt files and it is expected that other applications will follow them. What does this mean for you? Because the number of advertisers requiring the presence of app-ads.txt files increases over time, it is important that you publish the app-ads.txt file to your developer’s domain on this application’s listing on the Google Play or App Store to avoid any loss of profits. Ensure that the file does not contain any spelling errors or problems. If you do not publish the file or if the file contains errors, your ads will be subject to override by buyers, because the files that are published are considered a source of verification for implementation.