docs: @Override
      public Response init(ChaincodeStub stub) {
          try {
              // Get the args from the transaction proposal
              List<String> args = stub.getParameters();
              if (args.size() != 2) {
                  newErrorResponse("Incorrect arguments. Expecting a key and a value");
              }
              // Set up any variables or assets here by calling stub.putState()
              // We store the key and the value on the ledger
              stub.putStringState(args.get(0), args.get(1));
              return newSuccessResponse();
          } catch (Throwable e) {
              return newErrorResponse("Failed to create asset");
          }
      }