A separate section listing the public components of the module's interface.

These normally consist of either subroutines that may be exported, or methods that may be called on objects belonging to the classes that the module provides.

Name the section accordingly.

In an object-oriented module, this section should begin with a sentence (of the form "An object of this class represents ...") to give the reader a high-level context to help them understand the methods that are subsequently described.