import type { ContextOptions } from "./types.ts";
/**
 * The {@link startOfYesterday} function options.
 */
export interface StartOfYesterdayOptions<DateType extends Date = Date>
  extends ContextOptions<DateType> {}
/**
 * @name startOfYesterday
 * @category Day Helpers
 * @summary Return the start of yesterday.
 * @pure false
 *
 * @typeParam ContextDate - The `Date` type of the context function.
 *
 * @param options - An object with options
 *
 * @description
 * Return the start of yesterday.
 *
 * @returns The start of yesterday
 *
 * @example
 * // If today is 6 October 2014:
 * const result = startOfYesterday()
 * //=> Sun Oct 5 2014 00:00:00
 */
export declare function startOfYesterday<ContextDate extends Date>(
  options?: StartOfYesterdayOptions<ContextDate> | undefined,
): ContextDate;
