type Success<TData> = {
    readonly success: true;
    readonly data: TData;
    readonly error?: never;
};
type Failure<TError = unknown> = {
    readonly success: false;
    readonly data?: never;
    readonly error: TError;
};
export type Result<TData, TError = unknown> = Success<TData> | Failure<TError>;
export declare function tryCatchAsync<T>(fn: () => Promise<T>): Promise<Result<T>>;
export declare function tryCatch<T>(fn: () => T): Result<T>;
export {};