*
	 * @return array[]
	 */
	public function load_reusable_blocks( $blocks ) {

		$loaded = array();

		foreach ( $blocks as $block ) {

			// Skip blocks that are not reusable blocks.
			if ( 'core/block' === $block['blockName'] ) {

				// Skip reusable blocks that do not exist or are not published.
				$post = get_post( $block['attrs']['ref'] );
				if ( ! $post || 'publish' !== get_post_status( $post ) ) {
					continue;
				}

				$loaded = array_merge( $loaded, $this->parse_blocks( $post->post_content ) );
				continue;
			}

			// Does this block's inner blocks have references to reusable blocks?
			if ( $block['innerBlocks'] ) {
				$block['innerBlocks'] = $this->load_reusable_blocks( $block['innerBlocks'] );
			}

			$loaded[] = $block;
		}