How to make a universal check for non-purchase of contextual advertising?

Question

contextual advertising

For example, YAN has a function altCallback ( https://yandex.ru/support/partner2/web/products-rt...
However, a universal solution is required for different advertising banners (adsense, various teasers, etc.). The most obvious I don't like the decision to check for the block height after a few seconds, because the ad may take a long time to load and might appear, or if you do the check after a long time, it makes no sense
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