public function pushGroup($pattern, $callable)
    {
        $group = new Group($pattern, $callable);

        array_push($this->routeGroups, $group);

        return $group;
    }
public function pushGroup($pattern, $callable)
    {
        $group = new Group($pattern, $callable);

        array_push($this->routeGroups, $group);

        return $group;
    }
public function pushGroup ( $ pattern , $ callable ) { $ group = new Group ( $ pattern , $ callable ) ; array_push ( $ this -> routeGroups , $ group ) ; return $ group ; }
Add a route group to the array

@param string   $pattern
@param callable $callable

@return GroupInterface
Add a route group to the array