This function returns the chat history for a chat session a.

If an empty chat history is found for an existing chat session, the return value is an empty string. If no session is found for the specified session key a, the return value is an empty string with set Empty Flag.

Parameters

Parameter	Description
a	(optional) Chat session k ey. Note: If no specific session key is set, the internal session key is used. See functions setup OpenAI ChatGPT() and setup Azure ChatGPT() .