import { Unit } from "../types";
/**
 * @description Decreases a given date by a specified amount of time based on the unit provided.
 *
 * @param date The starting date from which the time will be decremented.
 * @param value The number of units to decrement. If not a valid number, the original timestamp is returned.
 * @param unit The unit of time to decrement. Possible values are:
 * - `'day'`: Decrement by days.
 * - `'hour'`: Decrement by hours.
 * - `'minute'`: Decrement by minutes.
 * - `'month'`: Decrement by months.
 * - `'week'`: Decrement by weeks.
 * - `'year'`: Decrement by years.
 *
 * @returns The decremented timestamp as a number. If the input date is invalid, the current timestamp is returned.
 *
 * @example
 * ```typescript
 * const now = new Date();
 * const decrementedTime = DecrementTime(now, 2, 'day'); // Subtracts 2 days from the current date.
 * console.log(new Date(decrementedTime)); // Logs the decremented date.
 * ```
 */
export declare const DecrementTime: (date: Date, value: number, unit: Unit) => number;
export default DecrementTime;
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