/**
 * Result type for operations that can fail.
 * Discriminated union with `ok` field for pattern matching.
 * @template T - Success value type
 * @template E - Error type
 * @example
 * ```typescript
 * const result: Result<number, string> = Ok(42);
 * if (result.ok) {
 *   console.log(result.value); // 42
 * } else {
 *   console.error(result.error);
 * }
 * ```
 */
export type Result<T, E> = {
    ok: true;
    value: T;
} | {
    ok: false;
    error: E;
};
/**
 * Create a successful Result.
 * @template T - Success value type
 * @param value - The success value
 * @returns Result with ok: true
 * @example
 * ```typescript
 * const result = Ok(42);
 * // Result<number, never>
 * ```
 */
export declare const Ok: <T>(value: T) => Result<T, never>;
/**
 * Create a failed Result.
 * @template E - Error type
 * @param error - The error value
 * @returns Result with ok: false
 * @example
 * ```typescript
 * const result = Err('Something went wrong');
 * // Result<never, string>
 * ```
 */
export declare const Err: <E>(error: E) => Result<never, E>;
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