/**
 * Runs `onLog` once per distinct `key`, skipping re-renders that repeat the
 * same key and skipping entirely while `key` is `undefined`. Replaces the
 * copy-pasted `useRef` + `useEffect` dedupe-logging block that kept
 * reappearing across withdrawal flows.
 */
export declare function useLogOnce(key: string | undefined, onLog: () => void): void;
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