import { AddressAsIf } from "./addressAsIf.js";
export type Permit2AllowanceValue = {
    nonce: bigint;
    expiration: bigint;
    amount: bigint;
};
export declare class Permit2AsIf extends AddressAsIf {
    private _method;
    private _allowanceMappingSlotNumber;
    private _nonceBitmapMappingSlotNumber;
    constructor(address: string);
    allowance(ownerAddress: string, tokenAddress: string, spenderAddress: string): Permit2AsIf;
    nonceBitmap(ownerAddress: string, wordPos: bigint): Permit2AsIf;
    is(value: Permit2AllowanceValue | bigint): Permit2AsIf;
}
export declare const PERMIT2_ADDRESS = "0x000000000022d473030f116ddee9f6b43ac78ba3";
export declare const permit2: () => Permit2AsIf;