Diligence is still under development and incomplete, and some this documentation is wrong. For a more comprehensive but experimental version download the Savory Framework, which was the preview release of Diligence.
PayPal Integration
Usage
Make sure to check out the API documentation for Diligence.PayPal.
The Diligence Manual is provided for you under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The complete manual is available for download as a PDF.