InternalAccept method
Implementation
Future<CalendarActionResults> InternalAccept(
bool tentative, bool sendResponse) {
throw NotImplementedException("InternalAccept");
// AcceptMeetingInvitationMessage accept = this.CreateAcceptMessage(tentative);
//
// if (sendResponse)
// {
// return accept.SendAndSaveCopy();
// }
// else
// {
// return accept.Save();
// }
}