import type { ControlFlowOptions } from '../types.js';
import type { SignEIP2612PermitParams } from './signEIP2612Permit.js';
import type { Client, FeeValuesEIP1559, Hash } from 'viem';
/**
 * Parameters for the {@link permit} function.
 */
export type PermitParams = SignEIP2612PermitParams & {
    gas?: bigint;
    fees?: FeeValuesEIP1559;
};
export type PermitReturnType = Hash;
/**
 * Signs and executes an EIP-2612 permit
 *
 * @param client - The client instance.
 * @param params - The permit parameters.
 * @returns A transaction hash (`Hash`).
 */
export declare function permit(client: Client, params: PermitParams & ControlFlowOptions): Promise<`0x${string}`>;