protected function registerColumns()
    {
        $this->hook->action('admin_init', function () {
            $this->singularity->columns($this->columns());
        })->dispatch();
    }
protected function registerColumns()
    {
        $this->hook->action('admin_init', function () {
            $this->singularity->columns($this->columns());
        })->dispatch();
    }
protected function registerColumns ( ) { $ this -> hook -> action ( 'admin_init' , function ( ) { $ this -> singularity -> columns ( $ this -> columns ( ) ) ; } ) -> dispatch ( ) ; }
Register columns of the users list.

@return void
Register columns of the users list .