NewCoordinator create a new coordinator objects receiving the clientFactory and the runner.

NewSyncClient creates a new sync clients from the provided configuration, existing ACKs handlers defined in the configuration will be proxied by this object.

Coordinator takes care of managing the function goroutine, it receives the list of functions that need to be executed and manage the goroutine.

SyncClient wraps an existing beat.Client and provide a sync interface.

Client implements the interface used by all the functionbeat function, we only implement a synchronous client.

Runner is the interface that the coordinator will follow to manage a function goroutine.