/**
 * Reports the viewer's own composer activity for `conversationId` so other
 * participants see a typing indicator. `reportActivity` on every edit,
 * `stopTyping` when the composer is cleared, blurred or the message is sent.
 */
export declare const useReportTypingState: (conversationId: string) => {
    reportActivity: (composerValue: string) => void;
    stopTyping: () => void;
};
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