
package MyLanguage;
use Pegex::Base;
extends 'Pegex::Module';
has grammar => 'MyLanguage::Grammar';
has receiver => 'MyLanguage::AST';
1;

The module in the SYNOPSIS above is a complete language parsing module. It just inherits from Pegex::Module, and then overrides the grammar and receiver properties. Pegex::Module provides the parse() method.