/**
 * useAgentAssist
 *
 * Manages the Agent Assist feature:
 * - Toggle sends AGENT_ASSIST_START / AGENT_ASSIST_STOP to LiveKit topic 'assist.event'
 * - Listens for incoming data on topic 'assist.suggestion' and surfaces the suggestion text
 * - Cleans up all listeners on disconnect or unmount
 */
export declare function useAgentAssist(client: any, enabled: boolean): {
    isAssistOn: boolean;
    toggleAssist: () => Promise<void>;
    suggestionText: string;
};