Generate or specify a user message in the conversation.
If content is provided, it will be used as the user message. If no content
is provided, the user simulator agent will automatically generate an
appropriate message based on the scenario context.
Parameters
Optionalcontent: string|CoreMessage
Optional user message content. Can be a string or full message object.
If undefined, the user simulator will generate content automatically.
Generate or specify a user message in the conversation.
If content is provided, it will be used as the user message. If no content is provided, the user simulator agent will automatically generate an appropriate message based on the scenario context.