code: public void addInt8(final int key, final byte b) {
          PebbleTuple t = PebbleTuple.create(key, PebbleTuple.TupleType.INT, PebbleTuple.Width.BYTE, b);
          addTuple(t);
      }
docs: Associate the specified signed byte with the provided key in the dictionary. If another key-value pair with the
  same key is already present in the dictionary, it will be replaced.
  
  @param key
  key with which the specified value is associated
  @param b
  value to be associated with the specified key