private static string BuildValidRequestBody(
            PayloadContentKind payloadContentKind = PayloadContentKind.ContentString)
        {
            var communicationRequest = BuildValidCommunicationRequest(payloadContentKind);

            return(BuildRequestBody(communicationRequest));
        }
 private static CommunicationRequest BuildValidCommunicationRequest(
     PayloadContentKind payloadContentKind = PayloadContentKind.ContentString)
 {
     var communicationRequest = new CommunicationRequest
     {
         Status = RequestStatus.Active,
         Sender = new ResourceReference
         {
             Display = "NHS App"
         },
         Identifier = new List <Identifier>
         {
             new(FhirR4IdentifierSystem.CampaignId, "Campaign ID 1"),
             new(FhirR4IdentifierSystem.RequestReference, "Request Reference 1")
         },