TypeError: Object of type 'UUID' is not JSON serializable when url param is of type uuid

[krzysztofkusmierczyk]

flask-profiler raises an exception when calling an endpoint with uuid parameter like /game/<uuid:game_id>/status

Windows 10 if it matters.

  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\_compat.py", line 35, in reraise
    raise value
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask\app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask_profiler\flask_profiler.py", line 137, in wrapper
    return wrapped(*args, **kwargs)
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask_profiler\flask_profiler.py", line 116, in wrapper
    collection.insert(measurement.__json__())
  File "C:\Users\krzys\.virtualenvs\xxx\lib\site-packages\flask_profiler\storage\sql_alchemy.py", line 69, in insert
    kwargs = json.dumps(kwds.get('kwargs', ()))
  File "C:\Program Files (x86)\Python36-32\Lib\json\__init__.py", line 231, in dumps
    return _default_encoder.encode(obj)
  File "C:\Program Files (x86)\Python36-32\Lib\json\encoder.py", line 199, in encode
    chunks = self.iterencode(o, _one_shot=True)
  File "C:\Program Files (x86)\Python36-32\Lib\json\encoder.py", line 257, in iterencode
    return _iterencode(o, 0)
  File "C:\Program Files (x86)\Python36-32\Lib\json\encoder.py", line 180, in default
    o.__class__.__name__)
TypeError: Object of type 'UUID' is not JSON serializable```