feat: Use streaming setup at Query level (#214)

embedchain/config/ChatConfig.py

@@ -4,5 +4,11 @@ class ChatConfig(QueryConfig):
     """
     Config for the `chat` method, inherits from `QueryConfig`.
     """
-    def __init__(self):
-        pass
+    def __init__(self, stream: bool = False):
+        """
+        Initializes the QueryConfig instance.
+
+        :param stream: Optional. Control if response is streamed back to the user
+        :raises ValueError: If the template is not valid as template should contain $context and $query
+        """
+        super().__init__(stream=stream)