apply_filters( "theme_{$post_type}_templates", string[] $post_templates, WP_Theme $theme, WP_Post|null $post, string $post_type )

1428		 *1429		 * @param string[]     $post_templates Array of template header names keyed by the template file name.1430		 * @param WP_Theme     $theme          The theme object.1431		 * @param WP_Post|null $post           The post being edited, provided for context, or null.1432		 * @param string       $post_type      Post type to get the templates for.1433		 */1434		$post_templates = (array) apply_filters( "theme_{$post_type}_templates", $post_templates, $this, $post, $post_type );1435 1436		return $post_templates;1437	}1438 1439	/**1440	 * Scans a directory for files of a certain extension.