Renders a chat input.
Routes to different implementations based on feature flags:
Parameters: developer (Developer): The developer associated with the chat session. session_id (UUID): The unique identifier of the chat session. chat_input (ChatInput): The chat input data.
Returns: RenderResponse: The rendered chat input.
1auto, none 1204-1 <= x <= 1000x >= 10 <= x <= 20 <= x <= 20 <= x <= 1-2 <= x <= 2-2 <= x <= 20 <= x <= 50 <= x <= 1