/**
 * Puts the current value and previous value together as an array, and queues that.
 *
 * @group Transformers
 * @example
 * ```
 * --a----b------c------d------
 *
 * pairwise()
 *
 * -------[a,b]--[b,c]--[c,d]--
 * ```
 */
export declare function pairwise<T>(): import("node:stream/web").TransformStream<T, [T, T]>;
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