Description
When using Whirr as a library, rather than as a command-line tool directly, it'd be very handy to be able to have a listener class called when handlers' events are called, for logging/monitoring/etc.
When using Whirr as a library, rather than as a command-line tool directly, it'd be very handy to be able to have a listener class called when handlers' events are called, for logging/monitoring/etc.