predictor/test_xgboost.py:52:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
common/utils.py:78: in predict
   probs = json.loads(response.content.decode('utf-8'))["predictions"]
/usr/local/lib/python3.6/json/__init__.py:354: in loads
   return _default_decoder.decode(s)
/usr/local/lib/python3.6/json/decoder.py:339: in decode
   obj, end = self.raw_decode(s, idx=_w(s, 0).end())
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <json.decoder.JSONDecoder object at 0x7f59ac7cc160>, s = '', idx = 0
   def raw_decode(self, s, idx=0):
       """Decode a JSON document from ``s`` (a ``str`` beginning with
       a JSON document) and return a 2-tuple of the Python
       representation and the index in ``s`` where the document ended.

       This can be used to decode a JSON document from a string that may
       have extraneous data at the end.

       """
       try:
           obj, end = self.scan_once(s, idx)
       except StopIteration as err:
>           raise JSONDecodeError("Expecting value", s, err.value) from None
E           json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
/usr/local/lib/python3.6/json/decoder.py:357: JSONDecodeError
----------------------------- Captured stderr call -----------------------------
[I 191216 18:54:12 utils:75] Sending request data: {"instances": [[6.8, 2.8, 4.8, 1.4], [6.0, 3.4, 4.5, 1.6]]}
[I 191216 18:54:12 utils:77] Got response code 404, content b''
------------------------------ Captured log call -------------------------------
INFO     root:utils.py:75 Sending request data: {"instances": [[6.8, 2.8, 4.8, 1.4], [6.0, 3.4, 4.5, 1.6]]}
INFO     root:utils.py:77 Got response code 404, content b''