interface ErrorResponse {
    message: string;
    code: string;
}
declare class AutumnError extends Error {
    readonly message: string;
    readonly code: string;
    constructor(response: ErrorResponse);
    toString(): string;
    toJSON(): {
        message: string;
        code: string;
    };
}

type Success<T> = {
    data: T;
    error: null;
    statusCode?: number;
};
type Failure<E> = {
    data: null;
    error: E;
    statusCode?: number;
};
type Result<T, E> = Success<T> | Failure<E>;

export { AutumnError as A, type ErrorResponse as E, type Result as R };