import type USPSClass from "../usps.js";
import type { ErrorResponse } from "../usps.js";
export interface CityStateLookupRequest {
    ZipCode: {
        Zip5: string;
    };
}
export interface CityStateLookupResponse {
    Error?: ErrorResponse;
    ZipCode?: {
        City: string;
        State: string;
        Zip5: string;
    };
}
export default function (this: USPSClass, zip: string): Promise<CityStateLookupResponse["ZipCode"] | Error>;