Update version to 4.1.2 and refine stream response handling in .messa…

…ge() method

- Bump version number in promptic.py to 4.1.2.
- Improve the check for 'stream' in kwargs to enhance response handling for streaming scenarios.
- Maintain existing functionality for non-streaming responses.

promptic.py

@@ -15,7 +15,7 @@
 from pydantic import BaseModel
 from litellm.utils import CustomStreamWrapper
 
-__version__ = "4.1.1"
+__version__ = "4.1.2"
 
 SystemPrompt = Optional[Union[str, List[str], List[Dict[str, str]]]]
 
@@ -171,7 +171,7 @@ def message(self, message: str, **kwargs):
         messages = [{"content": message, "role": "user"}]
         response = self._completion(messages, **kwargs)
 
-        if "stream" in self.litellm_kwargs | kwargs:
+        if (self.litellm_kwargs | kwargs).get("stream"):
             return self._stream_response(response)
         else:
             content = response.choices[0].message.content