WP_HTML_Processor::insert_virtual_node( string $token_name, string|null $bookmark_name = null ): WP_HTML_Token

6256	private function insert_virtual_node( $token_name, $bookmark_name = null ): WP_HTML_Token {6257		$here = $this->bookmarks[ $this->state->current_token->bookmark_name ];6258		$name = $bookmark_name ?? $this->bookmark_token();6259 6260		$this->bookmarks[ $name ] = new WP_HTML_Span( $here->start, 0 );6261 6262		$token = new WP_HTML_Token( $name, $token_name, false );6263		$this->insert_html_element( $token );6264		return $token;6265	}