!!! Overview
[{$pagename}] is An integer value that specifies the category of the class, which can be one of the following:

* 1 - [STRUCTURAL], meaning that it can be instantiated in the directory.
* 2 - [ABSTRACT], meaning that the class provides a basic definition of a class that can be used to form structural classes.
* 3 - [AUXILIARY], meaning that a class that can be used to extend the definition of a class that inherits from it but cannot be used to form a class by itself.


!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]