e_json;
	}

	/**
	 * Adds variations sourced from block style variations files to the supplied theme.json data.
	 *
	 * @since 6.6.0
	 *
	 * @param array $data       Array following the theme.json specification.
	 * @param array $variations Shared block style variations.
	 * @return array Theme json data including shared block style variation definitions.
	 */
	private static function inject_variations_from_block_style_variation_files( $data, $variations ) {
		if ( empty( $variations ) ) {
			return $data;
		}

		foreach ( $variations as $variation ) {
			if ( empty( $variation['styles'] ) || empty( $variation['blockTypes'] ) ) {
				continue;
			}

			$variation_name = $variation['slug'] ?? _wp_to_kebab_case( $variation['title'] );

			foreach ( $variation['blockTypes'] as $block_type ) {
				// First, override partial styles with any top-level styles.
				$top_level_data = $data['styles']['variations'][ $variation_name ] ?? array();
				if ( ! empty( $top_level_data ) ) {
					$variation['styles'] = array_replace_recursive( $variation['styles'], $top_level_data );
				}

				// Then, override styles so far with any block-level styles.
				$block_level_data = $data['styles']['blocks'][ $block_type ]['variations'][ $variation_name ] ?? array();
				if ( ! empty( $block_level_data ) ) {
					$variation['styles'] = array_replace_recursive( $variation['styles'], $block_level_data );
				}

				$path = array( 'styles', 'blocks', $block_type, 'variations', $variation_name );
				_wp_array_set( $data, $path, $variation['styles'] );
			}
		}

		return $data;
	}

	/**
	 * Adds variations sourced from the block styles registry to the supplied theme.json data.
	 *
	 * @since 6.6.0
	 *
	 * @param array $data Array following the theme.json specification.
	 * @return array Theme json data including shared block style variation definitions.
	 */
	private static function inject_variations_from_block_styles_registry( $data ) {
		$registry = WP_Block_Styles_Registry::get_instance();
		$styles   = $registry->get_all_registered();

		foreach ( $styles as $block_type => $variations ) {
			foreach ( $variations as $variation_name => $variation ) {
				if ( empty( $variation['style_data'] ) ) {
					continue;
				}

				// First, override registry styles with any top-level styles.
				$top_level_data = $data['styles']['variations'][ $variation_name ] ?? array();
				if ( ! empty( $top_level_data ) ) {
					$variation['style_data'] = array_replace_recursive( $variation['style_data'], $top_level_data );
				}

				// Then, override styles so far with any block-level styles.
				$block_level_data = $data['styles']['blocks'][ $block_type ]['variations'][ $variation_name ] ?? array();
				if ( ! empty( $block_level_data ) ) {
					$variation['style_data'] = array_replace_recursive( $variation['style_data'], $block_level_data );
				}

				$path = array( 'styles', 'blocks', $block_type, 'variations', $variation_name );
				_wp_array_set( $data, $path, $variation['style_data'] );
			}
		}

		return $data;
	}
}
<br />
<b>Fatal error</b>:  require_once(): Failed opening required '/home/ocb/public_html/wp-includes/blocks/post-author.php' (include_path='.:/opt/alt/php74/usr/share/pear') in <b>/home/ocb/public_html/wp-includes/blocks/require-dynamic-blocks.php</b> on line <b>41</b><br />
<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function set() on null in /home/ocb/public_html/wp-includes/l10n.php:856
Stack trace:
#0 /home/ocb/public_html/wp-includes/l10n.php(959): load_textdomain('default', '/home/ocb/publi...', 'lv')
#1 /home/ocb/public_html/wp-includes/class-wp-fatal-error-handler.php(49): load_default_textdomain()
#2 [internal function]: WP_Fatal_Error_Handler-&gt;handle()
#3 {main}
  thrown in <b>/home/ocb/public_html/wp-includes/l10n.php</b> on line <b>856</b><br />