public ReturnObject addToGamemode(int deckId, Gamemode mode)
{
if (viewDeck.getGamemodes(deckId).Contains(mode))
{
return(new ReturnObject(false, "Deck is already in Gamemode."));
}
else
{
carddeckRepository.addToGamemode(deckId, mode);
return(new ReturnObject(true, "Deck added to Gamemode."));
}
}