कन्वर्सेशन-मैनेजर क्लास बनाना

class ConversationManager:
    def __init__(self):
        self.bedrock = boto3.client("bedrock-runtime", region_name="us-east-1")
        # Create an empty list for the conversation history
        ____

    # Add the method to append messages    
    def ____(self, ____, ____):
        self.conversation_history.append({"role": role, "content": content})