public static Request MeltTokens(int userIdentityID, string itemID, string index, int amount,
                                  bool async = false)
 {
     return(_requests.MeltItem(userIdentityID, itemID, index, amount, null, async));
 }
 public static Request MeltTokens(string senderAddress, string itemID, string index, int amount,
                                  bool async = false)
 {
     return(_requests.MeltItem(senderAddress, itemID, index, amount, null, async));
 }