import type { Transducer } from "./api.js";
/**
 * No-op / pass-through transducer, essentially the same as: `map((x) => x)`,
 * but faster. Useful for testing and / or to keep existing values in a
 * {@link multiplex} tuple lane.
 */
export declare const noop: <T>() => Transducer<T, T>;
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