AdvancedGet Oscillatorindicator request

Custom Indicators
1

Good day gentlemen,
Could you consider the following indicator .
The source is as attached.

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https://www.best-metatrader-indicators.com/advanced-get-oscillator/

Thank you very much

2

User guide
http://dl.farachart.com/movie/AdvancedGet_Golzar/userGuide.pdf
so far no luck in finding this PTI formula

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