lambdalifecycle

type Listener interface {
	// FunctionInvoked is called after the extension receives a "Next" notification.
	FunctionInvoked()
	// FunctionFinished is called after the extension is notified that the function has completed, but before the environment is frozen.
	// The environment is only frozen once all listeners have returned.
	FunctionFinished()
	// EnvironmentShutdown is called when the extension is notified that the environment is about to shut down.
	// Shutting down of the collector components only happens after all listeners have returned.
	EnvironmentShutdown()
}

type Notifier interface {
	AddListener(listener Listener)
}