public function number($number = null)
    {
        if ($number !== null) {
            $this->number = $this->escape($number);
            return $this;
        }
        return $this->number;
    }
public function number($number = null)
    {
        if ($number !== null) {
            $this->number = $this->escape($number);
            return $this;
        }
        return $this->number;
    }
public function number ( $ number = null ) { if ( $ number !== null ) { $ this -> number = $ this -> escape ( $ number ) ; return $ this ; } return $ this -> number ; }
Get or sets the RUT Number
@param $number
@return $this|int
Get or sets the RUT Number