block_core_gallery_data_id_backcompatibility( array $parsed_block ): array

21function block_core_gallery_data_id_backcompatibility( $parsed_block ) {22	if ( 'core/gallery' === $parsed_block['blockName'] ) {23		foreach ( $parsed_block['innerBlocks'] as $key => $inner_block ) {24			if ( 'core/image' === $inner_block['blockName'] ) {25				if ( ! isset( $parsed_block['innerBlocks'][ $key ]['attrs']['data-id'] ) && isset( $inner_block['attrs']['id'] ) ) {26					$parsed_block['innerBlocks'][ $key ]['attrs']['data-id'] = esc_attr( $inner_block['attrs']['id'] );27				}28			}29		}30	}31 32	return $parsed_block;33}