This indicator is designed to identify changes in and works well with Wyckoff's Law of Cause and Effect. The longer the price spends in the consolidation, the more volatile and far-reaching should the expansion phase be.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.