import { BigNumberish } from "ethers";
export declare const ONE_MINUTE = 60;
export declare const ONE_HOUR: number;
export declare const ONE_DAY: number;
/**
 * @param seconds How many seconds from now the timestamp should be set to.
 * @param shouldAdvanceBlock True if a block should be mined, effecting the next read call.
 * False to use this value as the timestamp for the next write call.
 * @returns The new timestamp.
 */
export declare function increaseTime(seconds: BigNumberish, shouldAdvanceBlock?: boolean): Promise<number>;
export declare function increaseTimeTo(timestamp: BigNumberish, shouldAdvanceBlock?: boolean): Promise<void>;
export declare function increaseTimeToNextHour(): Promise<void>;
export declare function getBlockTime(block?: string | number): Promise<number>;
export declare function advanceBlock(): Promise<void>;
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