import { ChainId, Trade } from '@envanik/sdk';
import { ApprovalState } from './constant';
export declare function useNearApproveCallback(): [ApprovalState, () => Promise<void>];
export declare function useApproveCallbackFromNearTrade(_chainId: ChainId, _trade?: Trade, _allowedSlippage?: number): [ApprovalState, () => Promise<void>];
