public GenerateInvitationApiRequest(Guid groupId, Guid invitationId, ExpirationTimeCommandItem expirationTime, UsageCounterCommandItem usageCounter)
 {
     GroupId        = groupId;
     InvitationId   = invitationId;
     ExpirationTime = expirationTime;
     UsageCounter   = usageCounter;
 }
 public GenerateInvitationCommand(Guid userId, Guid groupId, Guid invitationId, ExpirationTimeCommandItem expirationTime, UsageCounterCommandItem usageCounter)
 {
     UserId         = userId;
     GroupId        = groupId;
     InvitationId   = invitationId;
     ExpirationTime = expirationTime;
     UsageCounter   = usageCounter;
 }