internal TN_CourseParticipant_Filter[] ExtendTN_CourseParticipantFilter(TN_CourseParticipant_Filter[] filter, string criteria, TN_CourseParticipant_Fields field)
 {
     return(filter.Concat(SingleTN_CourseParticipantFilter(criteria, field)).ToArray());
 }
 internal TN_CourseParticipant_Filter[] SingleTN_CourseParticipantFilter(string criteria, TN_CourseParticipant_Fields field)
 {
     return(new TN_CourseParticipant_Filter[]
     {
         new TN_CourseParticipant_Filter()
         {
             Field = field,
             Criteria = criteria
         }
     });
 }