bot.sendMessage(chat_id=MY_CHAT_ID, text=telegram.Emoji.PILE_OF_POO)
  File "C:\Python34\lib\site-packages\telegram\bot.py", line 126, in decorator
    result = func(self, *args, **kwargs)
  File "C:\Python34\lib\site-packages\telegram\bot.py", line 158, in decorator
    result = request.post(url, data)
  File "C:\Python34\lib\site-packages\telegram\utils\request.py", line 88, in post
    data = json.dumps(data)
  File "C:\Python34\lib\json\__init__.py", line 230, in dumps
    return _default_encoder.encode(obj)
  File "C:\Python34\lib\json\encoder.py", line 192, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "C:\Python34\lib\json\encoder.py", line 250, in iterencode
    return _iterencode(o, 0)
  File "C:\Python34\lib\json\encoder.py", line 173, in default
    raise TypeError(repr(o) + " is not JSON serializable")
TypeError: b'\xf0\x9f\x92\xa9' is not JSON serializable