handle_message_event_3.py

def handle_message_event(client, body, say, bedrock_client, app, token):
    ....
    # Build the user's part of the conversation
    user_conversation_content, unsupported_file_type_found = build_conversation_content(
        event, token
    )

    if os.environ.get("VERA_DEBUG", "False") == "True":
        print("🚀 User conversation content:", user_conversation_content)

    # Check if the thread conversation content is empty. This happens when a user sends an unsupported doc type only, with no message
    if user_conversation_content != []:
        # Conversation content is not empty, append to conversation

        # Append the user's prompt to the conversation
        conversation.append(
            {
                "role": "user",
                "content": user_conversation_content,
            }
        )

        if os.environ.get("VERA_DEBUG", "False") == "True":
            print("🚀 State of conversation after append user's prompt:", conversation)

    # Check if conversation content is empty, this happens when a user sends an unsupported doc type only, with no message
    # Conversation looks like this: [{'role': 'user', 'content': []}]
    if os.environ.get("VERA_DEBUG", "False") == "True":
        print("🚀 State of conversation before check if convo is empty:", conversation)
    if conversation == []:
        # Conversation is empty, append to error message
        if os.environ.get("VERA_DEBUG", "False") == "True":
            print("🚀 Conversation is empty, exiting")

        # Announce the error
        say(
            text=f"> `Error`: Unsupported file type found, please ensure you are sending a supported file type. Supported file types are: images (png, jpeg, gif, webp).",
            thread_ts=thread_ts,
        )
        return
    ...