code: public static void debug(final Logger logger, final String type, final int version,
                             final Ident ident, final Object... args) {
  
      logger.debug(buildLogLine(type, version, ident, args));
    }
docs: Generate a new debug log message according to the Spotify log format.
  
  @param logger  Which Logger to use for writing the log messages. It is assumed that this Logger
  is already set up via com.spotify.logging.LoggingConfigurator and a
  [service]-log4j.xml configuration so that the time stamp, hostname, service, and
  process ID portions of the log message are automatically prepended.
  @param type    Log message type. Log messages are defined in the messages.py module in the
  log-parser git project. When a new message type is added or changed in a
  service, it should also be changed/added in messages.py.
  @param version Version of the log message. This is incremented by callers and in messages.py if
  the format of a given log message type is changed.
  @param ident   Ident object to give information generally about a client who made the request
  that resulted in this message.
  @param args    Additional arguments that will be converted to strings, escaped, and appended
  (tab-separated) after the log message type and version number.