OptionallogOptionallogIf a string, create this log file and write to it.
OptionallogIncrease (or decrease if negative) log verbosity by this much. -3: fatal, -2: error, -1: warn, 0: info, 1: debug, 2: trace. Useful for -qqqvvvv option processing. Default: 0.
OptionalmuteIf true, do not log to stdout.
OptionalprettyIgnore this set of comma-separated fields when pretty printing logs to stdout. Default: 'pid,hostname,name,host,port'.
OptionalsyncIf logFile is set, write synchronously if true (for testing).
Log instance, created by the first layer to call createLog. Alternative to getLog for times when multiple loggers are needed.