/**
 * A single-consumer async generator that can also be awaited to collect items.
 * - `for await (const p of gen)` iterates items one at a time
 * - `await gen` collects all items into an array
 * - once consumed, reusing the same generator yields no further items
 */
export type CollectableAsyncGenerator<T> = AsyncGenerator<T, void, unknown> & PromiseLike<T[]>;
/** Wrap an async generator so `await gen` collects all yielded items. */
export declare function collectable<T>(gen: AsyncGenerator<T, void, unknown>): CollectableAsyncGenerator<T>;
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