Used to create a fresh instance of the stage after an error resulting in a Restart directive. By default it will return the same instance untouched, so you must override it if there are any state that should be cleared before restarting, e.g. by returning a new instance.

public virtual IStage<TIn, TOut> Restart()

abstract Restart : unit -> IStage<'TIn, 'TOut> 
override Restart : unit -> IStage<'TIn, 'TOut>