/**
 * Lightweight log deduplication for CLI-side console output.
 *
 * Fingerprints messages by replacing variable parts (numbers, IDs, hex, JSON blobs)
 * with placeholders, then suppresses duplicates within a sliding window.
 * Periodically flushes suppression counts so the operator knows what was hidden.
 */
export declare class CliLogDedup {
    private entries;
    private prefix;
    constructor(prefix?: string);
    /**
     * Returns true if the message should be printed, false if suppressed.
     * Automatically flushes stale entries and emits suppression summaries.
     */
    shouldLog(message: string): boolean;
    private evict;
    private flushEntry;
}