import type { Numeric } from '../types/index';
import type { TimeWithUnit } from './types';
/**
 * * Parse the given value to milliseconds or optionally to seconds.
 *
 * @param value - The string (with unit) or number (or numeric string) to convert.
 * @param sec - Whether to return the value in seconds. Defaults to `false`.
 * @returns The given value parsed in milliseconds (or seconds if specified).
 *
 * @remarks
 * - A numeric value (number or numeric string ({@link Numeric})) is interpreted as seconds count, e.g., `120` or `'120'` will be treated as `'120 seconds'`.
 * - If you use time value with unit ({@link TimeWithUnit}) be sure you provide the time units (days, hours, etc.), otherwise it will return `NaN`, e.g., `'120 unknown'` will return `NaN`.
 */
export declare function parseMSec(value: TimeWithUnit | Numeric, sec?: boolean): number;