public function format($sFormat= null)
    {
        if (null === $sFormat) {
            return $this->getFormat();
        }

        return $this->setFormat($sFormat);
    }
public function format($sFormat= null)
    {
        if (null === $sFormat) {
            return $this->getFormat();
        }

        return $this->setFormat($sFormat);
    }
public function format ( $ sFormat = null ) { if ( null === $ sFormat ) { return $ this -> getFormat ( ) ; } return $ this -> setFormat ( $ sFormat ) ; }
Get or set the profile format to use.

@param string $sFormat The profile format to use.
@return string|\forxer\Gravatar\Profile
Get or set the profile format to use .