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1import type { ContextOptions, DateArg } from "./types.js";
2/**
3 * The subMonths function options.
4 */
5export interface SubMonthsOptions<DateType extends Date = Date>
6 extends ContextOptions<DateType> {}
7/**
8 * @name subMonths
9 * @category Month Helpers
10 * @summary Subtract the specified number of months from the given date.
11 *
12 * @description
13 * Subtract the specified number of months from the given date.
14 *
15 * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
16 * @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.
17 *
18 * @param date - The date to be changed
19 * @param amount - The amount of months to be subtracted.
20 * @param options - An object with options
21 *
22 * @returns The new date with the months subtracted
23 *
24 * @example
25 * // Subtract 5 months from 1 February 2015:
26 * const result = subMonths(new Date(2015, 1, 1), 5)
27 * //=> Mon Sep 01 2014 00:00:00
28 */
29export declare function subMonths<
30 DateType extends Date,
31 ResultDate extends Date = DateType,
32>(
33 date: DateArg<DateType>,
34 amount: number,
35 options?: SubMonthsOptions<ResultDate> | undefined,
36): ResultDate;