Clameurs/sites/all/modules/contrib/migrate/migrate/migrate_example/migrate_example.module

<?php

/**
 * @file
 * THIS SPACE INTENTIONALLY LEFT BLANK.
 *
 * Yes, there is no code in the .module file. Migrate operates almost entirely
 * through classes, and by adding any files containing class definitions to the
 * .info file, those files are automatically included only when the classes they
 * contain are referenced. The one non-class piece you need to implement is
 * hook_migrate_api(), but because .migrate.inc is registered using hook_hook_info
 * by defining your implementation of that hook in mymodule.migrate.inc, it is
 * automatically invoked only when needed.
 */