FromContext will extract a logger from a context if it contains one, or return the default logger if it doesn't.

InitDefault will create a new logger with the given settings and will set it as the default global logger.

LogContext will return a new context with the given logger added to the given context.

SweetenDefaultLogger will add fields to the default logger.

SweetenDefaultLoggerForLambda will add Lambda metadata fields (request ID and logs URL) to the default logger, as well as any additional fields in the `fields` parameter.

UnsweetenDefaultLogger will remove fields from the default logger.