The eventListeners member of the top level machina object holds event subscribers for events emitted from the machina namespace itself. It is an object that has a key for any event emitted, and the value of the key is an array of subscriber callbacks. Subscribers get added by calling machina.on("eventName", callback), and can unsubscribe via machina.off("eventName", callback).

Currently, the only event emitted is the newfsm event (triggered after an FSM's initialize call runs, and before it transitions to the initialState).