/**
 * Option type for optional values.
 * Discriminated union with `some` field for pattern matching.
 * @template T - Value type
 * @example
 * ```typescript
 * const option: Option<number> = Some(42);
 * if (option.some) {
 *   console.log(option.value); // 42
 * } else {
 *   console.log('No value');
 * }
 * ```
 */
export type Option<T> = {
    some: true;
    value: T;
} | {
    some: false;
};
/**
 * Create an Option with a value present.
 * @template T - Value type
 * @param value - The present value
 * @returns Option with some: true
 * @example
 * ```typescript
 * const option = Some(42);
 * // Option<number>
 * ```
 */
export declare const Some: <T>(value: T) => Option<T>;
/**
 * Create an Option with no value.
 * @template T - Value type (inferred from context)
 * @returns Option with some: false
 * @example
 * ```typescript
 * const option: Option<number> = None();
 * // Option<number> with some: false
 * ```
 */
export declare const None: <T = never>() => Option<T>;
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