* @since 5.9.0

 *

 * @global WP_Embed $wp_embed WordPress Embed object.

 *

	$theme            = isset( $attributes['theme'] ) ? $attributes['theme'] : get_stylesheet();

	if ( isset( $attributes['slug'] ) && get_stylesheet() === $theme ) {

		$template_part_id    = $theme . '//' . $attributes['slug'];

				'post_type'           => 'wp_template_part',

				'post_status'         => 'publish',

				'post_name__in'       => array( $attributes['slug'] ),

				'tax_query'           => array(

						'field'    => 'name',

						'terms'    => $theme,

				'posts_per_page'      => 1,

				'no_found_rows'       => true,

				'lazy_load_term_meta' => false, // Do not lazy load term meta, as template parts only have one term.

			$block_template = _build_block_template_result_from_post( $template_part_post );

			$content        = $block_template->content;

			if ( isset( $block_template->area ) ) {

				$area = $block_template->area;

			$template_part_file_path = '';

			if ( 0 === validate_file( $attributes['slug'] ) ) {

				$block_template = get_block_file_template( $template_part_id, 'wp_template_part' );

				$content = $block_template->content;

				if ( isset( $block_template->area ) ) {

					$area = $block_template->area;

				}

				// Needed for the `render_block_core_template_part_file` and `render_block_core_template_part_none` actions below.

				$block_template_file = _get_block_template_file( 'wp_template_part', $attributes['slug'] );

				if ( $block_template_file ) {

					$template_part_file_path = $block_template_file['path'];

				}

	$is_debug = WP_DEBUG && WP_DEBUG_DISPLAY;

	if ( is_null( $content ) ) {

		if ( $is_debug && isset( $attributes['slug'] ) ) {

			return sprintf(

				/* translators: %s: Template part slug. */

				__( 'Template part has been deleted or is unavailable: %s' ),

				$attributes['slug']

			);

		return '';

	// Look up area definition.

	$area_definition = null;

	$defined_areas   = get_allowed_block_template_part_areas();

	foreach ( $defined_areas as $defined_area ) {

		if ( $defined_area['area'] === $area ) {

			$area_definition = $defined_area;

			break;

		}

	}

	// If $area is not allowed, set it back to the uncategorized default.

	if ( ! $area_definition ) {

		$area = WP_TEMPLATE_PART_AREA_UNCATEGORIZED;

	}

	$content                       = shortcode_unautop( $content );

	$content                       = do_shortcode( $content );

	$content = wp_filter_content_tags( $content, "template_part_{$area}" );

	if ( empty( $attributes['tagName'] ) || tag_escape( $attributes['tagName'] ) !== $attributes['tagName'] ) {

		$area_tag = 'div';

		if ( $area_definition && isset( $area_definition['area_tag'] ) ) {

			$area_tag = $area_definition['area_tag'];

 * Returns an array of area variation objects for the template part block.

 *

 * @since 6.1.0

 *

 * @param array $instance_variations The variations for instances.

function build_template_part_block_area_variations( $instance_variations ) {

			$has_instance_for_area = false;

			foreach ( $instance_variations as $variation ) {

				if ( $variation['attributes']['area'] === $area['area'] ) {

					$has_instance_for_area = true;

					break;

				}

			}

			$scope = $has_instance_for_area ? array() : array( 'inserter' );

				'name'        => 'area_' . $area['area'],

				'scope'       => $scope,

 * Returns an array of instance variation objects for the template part block

 *

 * @since 6.1.0

 *

 * @return array Array containing the block variation objects.

 */

function build_template_part_block_instance_variations() {

	// Block themes are unavailable during installation.

	if ( wp_installing() ) {

		return array();

	}

	if ( ! current_theme_supports( 'block-templates' ) && ! current_theme_supports( 'block-template-parts' ) ) {

		return array();

	}

	$variations     = array();

	$template_parts = get_block_templates(

		array(

			'post_type' => 'wp_template_part',

		),

		'wp_template_part'

	);

	$defined_areas = get_allowed_block_template_part_areas();

	$icon_by_area  = array_combine( array_column( $defined_areas, 'area' ), array_column( $defined_areas, 'icon' ) );

	foreach ( $template_parts as $template_part ) {

		$variations[] = array(

			'name'        => 'instance_' . sanitize_title( $template_part->slug ),

			'title'       => $template_part->title,

			// If there's no description for the template part don't show the

			// block description. This is a bit hacky, but prevent the fallback

			// by using a non-breaking space so that the value of description

			// isn't falsey.

			'description' => $template_part->description || ' ',

			'attributes'  => array(

				'slug'  => $template_part->slug,

				'theme' => $template_part->theme,

				'area'  => $template_part->area,

			),

			'scope'       => array( 'inserter' ),

			'icon'        => isset( $icon_by_area[ $template_part->area ] ) ? $icon_by_area[ $template_part->area ] : null,

			'example'     => array(

				'attributes' => array(

					'slug'  => $template_part->slug,

					'theme' => $template_part->theme,

					'area'  => $template_part->area,

				),

			),

		);

	}

	return $variations;

}

/**

 * Returns an array of all template part block variations.

 *

 * @since 5.9.0

 *

 * @return array Array containing the block variation objects.

 */

function build_template_part_block_variations() {

	$instance_variations = build_template_part_block_instance_variations();

	$area_variations     = build_template_part_block_area_variations( $instance_variations );

	return array_merge( $area_variations, $instance_variations );

}

/**

 *

 * @since 5.9.0

			'render_callback'    => 'render_block_core_template_part',

			'variation_callback' => 'build_template_part_block_variations',