{"errorMessage": "KeyError('timezone',) is not JSON serializable", "errorType": "TypeError", "stackTrace": [["/var/lang/lib/python3.6/json/__init__.py", 238, "dumps", "**kw).encode(obj)"], ["/var/lang/lib/python3.6/json/encoder.py", 199, "encode", "chunks = self.iterencode(o, _one_shot=True)"], ["/var/lang/lib/python3.6/json/encoder.py", 257, "iterencode", "return _iterencode(o, 0)"], ["/var/runtime/bootstrap.py", 135, "decimal_serializer", "raise TypeError(repr(o) + \" is not JSON serializable\")"]]}