Values_0.StepSourceStep signifies the criteria to be used for routing to an agent
type nonrec t = {expiry : Expiry.t option;An object to specify the expiration of a routing step.
*)expression : Expression.t option;A tagged union to specify expression for a routing step.
*)status : RoutingCriteriaStepStatus.t option;Represents status of the Routing step.
*)}