export type DurationErrorKind = 'invalid-character' | 'number-expected' | 'unknown-unit' | 'number-overflow' | 'empty';
/** Carries the message the corresponding Rust error's Display produces. */
export declare class DurationParseError extends TypeError {
    kind: DurationErrorKind;
    constructor(kind: DurationErrorKind, message: string);
}
type ParsedDuration = {
    seconds: bigint;
    nanoseconds: bigint;
};
/** Parses a humantime expression into seconds plus subsecond nanos. */
export declare const parseHumantimeDuration: (input: string) => ParsedDuration;
/**
 * Mirrors `IggyDuration::from_str`: case-insensitive, with the zero
 * spellings mapped to a zero duration before humantime parsing.
 *
 * @returns Total nanoseconds as BigInt.
 */
export declare const parseIggyDurationNanoseconds: (value: string) => bigint;
/** Rounds nanoseconds to whole milliseconds, half up. */
export declare const nanosecondsToMilliseconds: (totalNanoseconds: bigint) => number;
export {};
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