What is the critical limitation regarding message storage in Bedrock and Cloud?	Bedrock and Cloud do not store any messages sent or received during a conversation.
How must a developer maintain context in a multi-message conversation with Bedrock?	The developer must manually maintain a list of all exchanged messages and provide that entire list with every follow-up request.
What happens if a follow-up request is sent to Bedrock containing only the new user message (e.g., "and three more")?	The response will likely be nonsensical because the API has no memory of previous messages.
What two types of messages must be included in the message list to maintain conversation context?	The user's input message and the assistant's previous response message.
What is the required structure for the list of messages sent to the API?	Roles must alternate between user and assistant (e.g., User, Assistant, User, Assistant).
What is the purpose of helper functions like `add user message` and `add assistant message`?	They simplify the process of creating a message type and appending it to the existing conversation list.
When using the `chat` function, what specific data is returned by the API call?	The response output message, specifically its content.