public function sortByDesc($callback, int $options = SORT_REGULAR)
    {
        return $this->sortBy($callback, $options, true);
    }
public function sortByDesc($callback, int $options = SORT_REGULAR)
    {
        return $this->sortBy($callback, $options, true);
    }
public function sortByDesc ( $ callback , int $ options = SORT_REGULAR ) { return $ this -> sortBy ( $ callback , $ options , true ) ; }
Sort the collection in descending order using the given callback.

@param callable|string $callback
@param int $options

@return static
Sort the collection in descending order using the given callback .