do_action_deprecated( "{$action}" )
If the ‘postcustom’ meta box is enabled, then we need to perform some extra initialization on it.
Contents
Source
File: wp-admin/includes/post.php.
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}
/**
* Prepares server-registered blocks for the block editor.
*
* Returns an associative array of registered block data keyed by block name. Data includes properties
* of a block relevant for client registration.