Reusable eventhandler pipeline

[StevenBlair123]

At the time fo this Issue being raised, the eventhandler piepline function (handleEvents) looks like this:

    let handleEvents (events:Event seq) = 
        let _ = 
            events
            |> Seq.filter (fun e -> isValidEvent e.EventType)  
            |> Seq.map (fun e -> 
                            Logger.writeline $"Processing {e.EventType}" //Only log out the events we are interested in
                            e)
            |> Seq.map (fun e -> DomainEventFactory.CreateDomainEvent e.Payload e.EventType)
            |> Seq.map loadState 
            |> Seq.map handleEvent                          
            |> Seq.map saveState  
            |> Seq.map postProcessing
            |> Seq.iter (fun _ -> () ) //enumerate pipeline
        ()

What I am wondering is, when we introduced more states, can we somehow reuse this pipeline.
Could loadState and saveState work on a generic?
could handleEvent be passed into handleEvents?