SetClients sets a pool of clients for passing into OnPoll
func Start() error
Start polling already existing services
StartPolling begins a polling loop for this service. If one already exists for this service, it will be instructed to die. The new poll will not wait for this to happen, so there may be a brief period of overlap. It is safe to immediately call `StopPolling(service)` to immediately terminate this poll.
StopPolling stops all pollers for this service.