export declare const enum TimeUnit {
    MILLISECOND = 0,
    SECOND = 1,
    MINUTE = 2,
    HOUR = 3,
    DAY = 4
}
/**
 * Parses an OME-compatible time unit into a TimeUnit enum.
 * @param unit string unit
 * @returns
 * - `TimeUnit.MILLISECOND` if unit is "ms", "millisecond", or "milliseconds"
 * - `TimeUnit.SECOND` if unit is "s", "sec", "second", or "seconds"
 * - `TimeUnit.MINUTE` if unit is "m", "min", "minute", or "minutes"
 * - `TimeUnit.HOUR` if unit is "h", "hr", "hour", or "hours"
 * - `TimeUnit.DAY` if unit is "d", "day", or "days"
 * - `undefined` if unit is not recognized
 */
export declare function parseTimeUnit(unit: string): TimeUnit | undefined;