Import legacy nurinda.co.id website

wp-content/plugins/revslider/includes/gutenberg-blocks/lib/meta-boxes.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Gutenberg_Courses\Example_Blocks;
+
+add_action( 'init', __NAMESPACE__ . '\register_meta_fields' );
+/**
+ * Registering meta fields for block attributes that use meta storage
+ */
+function register_meta_fields() {
+	register_meta(
+		'post',
+		'themepunchblocks_gb_metabox',
+		[
+			'type'         => 'string',
+			'single'       => true,
+			'show_in_rest' => true,
+		] );
+}