public function at(int $position): Utility
    {
        if ($position < 0) {
            return new static('', $this->encoding);
        }

        return $this->substring($position, 1);
    }
public function at(int $position): Utility
    {
        if ($position < 0) {
            return new static('', $this->encoding);
        }

        return $this->substring($position, 1);
    }
public function at ( int $ position ) : Utility { if ( $ position < 0 ) { return new static ( '' , $ this -> encoding ) ; } return $ this -> substring ( $ position , 1 ) ; }
Get the character at a specific index

@param int $position
@return Utility
Get the character at a specific index