tiny bit more cleanup

src/pipecat/services/together.py

@@ -18,7 +18,7 @@ from pipecat.frames.frames import (
     Frame,
     LLMModelUpdateFrame,
     TextFrame,
-    UserImageRawFrame,
+    UserImageRequestFrame,
     LLMMessagesFrame,
     LLMFullResponseStartFrame,
     LLMFullResponseEndFrame,
@@ -249,17 +249,9 @@ class TogetherUserContextAggregator(LLMUserContextAggregator):
         if isinstance(context, OpenAILLMContext):
             self._context = TogetherLLMContext.from_openai_context(context)
 
-    def get_messages_frame(self):
-        return OpenAILLMContextFrame(self._context)
-
     async def push_messages_frame(self):
-        await self.push_frame(self.get_messages_frame())
-
-    def append_image_description_tool_message(self, description):
-        self._context.add_message({
-            "role": "tool",
-            "content": json.dumps({"image_description": description})
-        })
+        frame = OpenAILLMContextFrame(self._context)
+        await self.push_frame(frame)
 
     async def process_frame(self, frame, direction):
         await super().process_frame(frame, direction)
@@ -268,10 +260,20 @@ class TogetherUserContextAggregator(LLMUserContextAggregator):
         # to talk through (tagging @aleix). At some point we might need to refactor these
         # context aggregators.
         try:
-            if isinstance(frame, UserImageRawFrame):
-                if frame.description:
-                    self.append_image_description_tool_message(frame.description)
-                    await self.push_messages_frame()
+            if isinstance(frame, UserImageRequestFrame):
+                # The LLM sends a UserImageRequestFrame upstream. Cache any context provided with
+                # that frame so we can use it when we assemble the image message in the assistant
+                # context aggregator.
+                if (frame.context):
+                    if isinstance(frame.context, str):
+                        self._context._user_image_request_context[frame.user_id] = frame.context
+                    else:
+                        logger.error(
+                            f"Unexpected UserImageRequestFrame context type: {type(frame.context)}")
+                        del self._context._user_image_request_context[frame.user_id]
+                else:
+                    if frame.user_id in self._context._user_image_request_context:
+                        del self._context._user_image_request_context[frame.user_id]
         except Exception as e:
             logger.error(f"Error processing frame: {e}")