src/Bootstrap/Laravel/ServiceProvider.php
public function registerCollections()
    {
        $this->app->bind(MiddlewareCollection::class, Group::class);
        $this->app->bind('mrs.middleman.group', Group::class);
        $this->app->alias('mrs.middleman.group', 'middleware.collection');
    }
public function registerCollections()
    {
        $this->app->bind(MiddlewareCollection::class, Group::class);
        $this->app->bind('mrs.middleman.group', Group::class);
        $this->app->alias('mrs.middleman.group', 'middleware.collection');
    }
Bind the abstract terms to the application container.

@return $this;