import { BigNumberish, Signer } from "ethers";
/**
 * @internal
 */
export declare function signDAIPermit(signer: Signer, currencyAddress: string, owner: string, spender: string, allowed?: boolean, deadline?: BigNumberish, nonce?: BigNumberish): Promise<{
    message: {
        owner: string;
        spender: string;
        nonce: BigNumberish | undefined;
        deadline: BigNumberish;
        value: number;
        allowed: boolean;
    };
    signature: string;
}>;
/**
 * @internal
 */
export declare function signEIP2612Permit(signer: Signer, currencyAddress: string, owner: string, spender: string, value: BigNumberish, deadline?: BigNumberish, nonce?: BigNumberish): Promise<{
    message: {
        owner: string;
        spender: string;
        value: BigNumberish;
        nonce: BigNumberish | undefined;
        deadline: BigNumberish;
    };
    signature: string;
}>;