fixed mocked openai v1+ chat object response

tests/test_wizard.py

@@ -19,6 +19,11 @@
     TEXT = f.read()
 
 
+class MockObject(object):
+    """Dummy class for mocking api response objects"""
+    pass
+
+
 class MockClass:
     """Dummy class to mock various api calls"""
 
@@ -38,7 +43,10 @@ def call(*args, **kwargs):  # pylint: disable=unused-argument
     @staticmethod
     def create(*args, **kwargs):  # pylint: disable=unused-argument
         """Mock for openai.ChatCompletion.create()"""
-        response = {'choices': [{'message': {'content': 'hello!'}}]}
+        response = MockObject()
+        response.choices = [MockObject()]
+        response.choices[0].message = MockObject()
+        response.choices[0].message.content = 'hello!'
         return response