/**
 * When a follow-up prompt panel may be shown.
 *
 * Ported from Core's `useChatMessagePromptPanels`: the panel belongs to a turn that is finished, so
 * it needs a user message to exist AND the last message to be the assistant's. The widget counted
 * messages instead (`length > 1`), which is true the instant a question is posted — so the panel
 * appeared under an unanswered question, carrying suggestions for the previous answer, and stayed
 * there while the new one streamed.
 */
type TurnLike = {
    type?: string;
};
export declare function hasCompletedExchange(messages: readonly TurnLike[] | undefined): boolean;
export {};