[OPR-167]: Adds typealias for payload.
[OPR-167]: Adds typealias for payload.

cezarywojcik/Operations,danthorpe/Operations,cezarywojcik/Operations,ProcedureKit/ProcedureKit,ProcedureKit/ProcedureKit,cezarywojcik/Operations,blg-andreasbraun/ProcedureKit,ProcedureKit/ProcedureKit,blg-andreasbraun/ProcedureKit,blg-andreasbraun/Operations,blg-andreasbraun/Operations,blg-andreasbraun/Operations,danthorpe/Operations,blg-andreasbraun/ProcedureKit,danthorpe/Operations