/// <reference types="jest" />
declare global {
    namespace jest {
        interface Matchers<R, T> {
            /**
             * Assert whether a date is the same week as another.
             * @param {Date} date - Date to compare to
             * @example
             * expect(new Date(2020, 8, 1)).toBeSameWeekAs(new Date(2020, 8, 1))
             */
            toBeSameWeekAs(date: Date): R;
        }
    }
}
export declare function toBeSameWeekAs(this: jest.MatcherUtils, received: Date, expected: Date): {
    pass: boolean;
    message: () => string;
};