Object of type 'map' is not JSON serializable

[gunhanoral]

Hello,

It seems there's a problem with map function on json objects.

python -V
Python 3.6.0 :: Anaconda 4.3.1 (64-bit)

>>> graphcommons.status()
{'msg': 'Working'}
>>> graph = graphcommons.new_graph(
...     name="Hello from python",
...     description="Python Wrapper Test",
...     signals=[
...         Signal(
...             action="node_create",
...             name="Ahmet",
...             type="Person",
...             description="nice guy"
...         ),
...         Signal(
...             action="edge_create",
...             from_name="Ahmet",
...             from_type="Person",
...             to_name="Burak",
...             to_type="Person",
...             name="COLLABORATED",
...             weight=2
...         )
...     ]
... )
Traceback (most recent call last):
  File "<stdin>", line 18, in <module>
  File "D:\Program\Anaconda3\lib\site-packages\graphcommons.py", line 119, in new_graph
    response = self.make_request('post', 'graphs', data=kwargs)
  File "D:\Program\Anaconda3\lib\site-packages\graphcommons.py", line 92, in make_request
    "Content-Type": "application/json"
  File "D:\Program\Anaconda3\lib\site-packages\requests\api.py", line 58, in request
    return session.request(method=method, url=url, **kwargs)
  File "D:\Program\Anaconda3\lib\site-packages\requests\sessions.py", line 494, in request
    prep = self.prepare_request(req)
  File "D:\Program\Anaconda3\lib\site-packages\requests\sessions.py", line 437, in prepare_request
    hooks=merge_hooks(request.hooks, self.hooks),
  File "D:\Program\Anaconda3\lib\site-packages\requests\models.py", line 308, in prepare
    self.prepare_body(data, files, json)
  File "D:\Program\Anaconda3\lib\site-packages\requests\models.py", line 458, in prepare_body
    body = complexjson.dumps(json)
  File "D:\Program\Anaconda3\lib\json\__init__.py", line 231, in dumps
    return _default_encoder.encode(obj)
  File "D:\Program\Anaconda3\lib\json\encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "D:\Program\Anaconda3\lib\json\encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
  File "D:\Program\Anaconda3\lib\json\encoder.py", line 180, in default
    o.__class__.__name__)
TypeError: Object of type 'map' is not JSON serializable
>>>