Caché automatically produces documentation for each class. To use the documentation, right click on a class in the Studio Project tab of the Workspace window and select Show Class Documentation from the pop-up menu.
Caché opens a browser window with information about the selected class and links for quick access to lots of related information.
You can also get to the class documentation from the on-line documentation, In this case, click on the following link to learn about the %CSP.Request class. (Classes provided as part of CSP all belong to the %CSP package, to distinguish them from classes which are part of your application.)