Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
` copyright tags as defined in Media RSS
*
* Used by {@see \SimplePie\Enclosure::get_copyright()}
*
* This class can be overloaded with {@see \SimplePie\SimplePie::set_copyright_class()}
*/
class Copyright
{
/**
* Copyright URL
*
* @var ?string
* @see get_url()
*/
public $url;
/**
* Attribution
*
* @var ?string
* @see get_attribution()
*/
public $label;
/**
* Constructor, used to input the data
*
* For documentation on all the parameters, see the corresponding
* properties and their accessors
*/
public function __construct(
?string $url = null,
?string $label = null
) {
$this->url = $url;
$this->label = $label;
}
/**
* String-ified version
*
* @return string
*/
public function __toString()
{
// There is no $this->data her