IInteractionService.PromptInputsAsync and InputsDialogValidationContext.Inputs return or provide a list of InteractionInput instances. It would be useful for people to be able to access the inputs using a name instead of just index.

InteractionInput should have an optional Name option that can be used to look up an input from a keyed collection. If no name is specified then one is generated. If duplicate input names are specified when displaying a inputs dialog then throw a clear error message.