docs: private Response delete(ChaincodeStub stub, List<String> args) {
  		if (args.size() != 1) {
  			return newErrorResponse("Incorrect number of arguments. Expecting 1");
  		}
  		String key = args.get(0);
  		// Delete the key from the state in ledger
  		stub.delState(key);
  		return newSuccessResponse();
  	}