public function vnSeparator(array $vnSeparator = null)
    {
        if ($vnSeparator !== null) {
            $this->vnSeparator = $vnSeparator;
            return $this;
        }
        return $this->vnSeparator;
    }
public function vnSeparator(array $vnSeparator = null)
    {
        if ($vnSeparator !== null) {
            $this->vnSeparator = $vnSeparator;
            return $this;
        }
        return $this->vnSeparator;
    }
public function vnSeparator ( array $ vnSeparator = null ) { if ( $ vnSeparator !== null ) { $ this -> vnSeparator = $ vnSeparator ; return $ this ; } return $ this -> vnSeparator ; }
Get or sets the verification number separator
@param array|null $vnSeparator
@return $this|string
Get or sets the verification number separator