public Consent isProposedArgumentSetValid(
     final ObjectAdapter contributee,
     final ObjectAdapter[] proposedArguments,
     final InteractionInitiatedBy interactionInitiatedBy) {
   ObjectAdapter[] serviceArguments = argsPlusContributee(contributee, proposedArguments);
   return serviceAction.isProposedArgumentSetValid(
       serviceAdapter, serviceArguments, interactionInitiatedBy);
 }