public function size($iSize = null)
    {
        if (null === $iSize) {
            return $this->getSize();
        }

        return $this->setSize($iSize);
    }
public function size($iSize = null)
    {
        if (null === $iSize) {
            return $this->getSize();
        }

        return $this->setSize($iSize);
    }
public function size ( $ iSize = null ) { if ( null === $ iSize ) { return $ this -> getSize ( ) ; } return $ this -> setSize ( $ iSize ) ; }
Get or set the avatar size to use.

@param integer $iSize The avatar size to use, must be less than 2048 and greater than 0.
@return number|\forxer\Gravatar\Image
Get or set the avatar size to use .