/**
 * Human-readable formatting utilities.
 *
 * Table formatting, column alignment, and relative time display
 * for CLI output.
 */
/** A column definition for table formatting. */
export type Column = {
    /** Column header label. */
    label: string;
    /** Alignment within the column. Defaults to "left". */
    align?: "left" | "right" | undefined;
    /** Minimum column width (in characters). */
    minWidth?: number | undefined;
};
/**
 * Format rows as an aligned table.
 *
 * Each row is an array of cell values matching the column definitions.
 * Columns are separated by the given gap (default 2 spaces).
 */
export declare function formatTable(columns: Column[], rows: string[][], gap?: number): string;
/**
 * Format a relative time string from a timestamp or milliseconds age.
 *
 * Returns human-friendly strings like "just now", "5s ago", "3m ago",
 * "2h ago", "1d ago".
 */
export declare function relativeTime(ageMs: number): string;
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