import { KeyboardEvent } from "react";
import BigNumber from "@kensoni/big-number";
export declare function isWhiteKeys(key: string, value: BigNumber, comma?: boolean, disableNegative?: boolean, integer?: boolean): boolean;
export declare function existSep(value: BigNumber): boolean;
export declare function revertByChange(value: string, comma?: boolean): string;
export declare function isCommandKey(e: KeyboardEvent): boolean;