export type Result<T, E> = {
    ok: true;
    value: T;
} | {
    ok: false;
    error: E;
};
export declare function ok<T>(value: T): Result<T, never>;
export declare function err<E>(error: E): Result<never, E>;
export declare function isOk<T, E>(result: Result<T, E>): result is {
    ok: true;
    value: T;
};
export declare function isErr<T, E>(result: Result<T, E>): result is {
    ok: false;
    error: E;
};
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