* Blocks API: WP_Block_Template class
* Class representing a block template.
#[AllowDynamicProperties]
class WP_Block_Template {
public $description = '';
* Source of the content. `theme` and `custom` is used for now.
public $source = 'theme';
* Origin of the content when the content has been customized.
* When customized, origin takes on the value of source and source becomes
* Whether a template is, or is based upon, an existing template file.
* Whether a template is a custom template.
public $is_custom = true;
* A value of 0 means no author.