import { Failure } from "./failure";
export declare class Result<ContentType = void> {
    readonly content: ContentType;
    readonly failure: Failure | undefined;
    private constructor();
    isFailure(): this is Result<ContentType> & {
        failure: Failure;
    };
    isSuccess(): this is Result<ContentType> & {
        failure: undefined;
    };
    static withSuccess<ContentType>(content?: ContentType): Result<ContentType>;
    static withFailure<ContentType = any>(failure: Failure | Error | string): Result<ContentType>;
    getErrorMessage(): string | undefined;
}