WP_Scripts::print_extra_script( string $handle, bool $display = true ): bool|string|null

223	public function print_extra_script( $handle, $display = true ) {224		$output = $this->get_data( $handle, 'data' );225		if ( ! $output ) {226			return null;227		}228 229		/*230		 * Do not print a sourceURL comment if concatenation is enabled.231		 *232		 * Extra scripts may be concatenated into a single script.233		 * The line-based sourceURL comments may break concatenated scripts234		 * and do not make sense when multiple scripts are joined together.235		 */236		if ( ! $this->do_concat ) {237			$output .= sprintf(238				"\n//# sourceURL=%s",239				rawurlencode( "{$handle}-js-extra" )240			);241		}242 243		if ( ! $display ) {244			return $output;245		}246 247		wp_print_inline_script_tag( $output, array( 'id' => "{$handle}-js-extra" ) );248 249		return true;250	}