import type { EventDict } from '../../observe/observer.ts';
/**
 * Render command events as a GNU bash histfile: one `#<epoch-seconds>`
 * timestamp comment line per entry followed by the command line.
 * Non-command events (ops, clear tombstones) are ignored.
 */
export declare function renderBashHistory(events: EventDict[]): string;
/**
 * Render command events as `history` command output: a numbered,
 * right-justified, two-space-separated listing.
 */
export declare function renderHistoryListing(events: EventDict[], n?: number, histsize?: number): string;
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