code: public static void log(int logLevel, String format, Object... args) {
      assertInitialization();
      sLogger.log(logLevel, format, args);
    }
docs: Log a message with specific log level.
  
  @param logLevel the specific log level
  @param format   the format of the message to log
  @param args     the arguments of the message to log
  @since 1.4.0