code: @POST
      public Response create(final String resource)
              throws IOException {
          return execute(getResourceRequest(RequestTypeEnum.POST, RestOperationTypeEnum.CREATE).resource(resource));
      }
docs: Create a new resource with a server assigned id
  
  @param resource the body of the post method containing resource being created in a xml/json form
  @return the response
  @see <a href="https://www.hl7.org/fhir/http.html#create">https://www.hl7. org/fhir/http.html#create</a>