|Stream||Selects which standard stream to write to for log entries. STDERR is the default Stream.|
|repeated map<string, Level>||Maps from severity strings as specified in LogEntry instances to the set of levels supported by this adapter.|
|Level||The level to assign to metrics being output.|
|bool||Whether to output a console-friendly or json-friendly format|
Importance level for individual items output by this adapter.
Stream is used to select between different log output sinks.