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。
attributes ) {
$block_type->attributes = array();
}
if ( ! array_key_exists( 'className', $block_type->attributes ) ) {
$block_type->attributes['className'] = array(
'type' => 'string',
);
}
}
}
/**
* Adds the custom classnames to the output.
*
* @since 5.6.0
* @access private
*
* @param WP_Block_Type $block_type Block Type.
* @param array $block_attributes Block attributes.
*
* @return array Block CSS classes and inline styles.
*/
function wp_apply_custom_classname_support( $block_type, $block_attributes ) {
$has_custom_classname_sup