import { Stream } from "@effect/core/stream/Stream/definition";
import { Effect } from "@effect/core/io/Effect/definition";
import { GroupBy } from "@effect/core/stream/GroupBy/definition/base";
/**
 * Constructs a new `GroupBy`.
 * @tsplus static effect/core/stream/GroupBy.Ops __call
 * @tsplus location "@effect/core/stream/GroupBy/operations/make"
 */
export declare function make<R, E, R2, E2, K, V, A>(stream: Stream<R, E, A>, key: (a: A) => Effect<R2, E2, readonly [K, V]>, buffer: number): GroupBy<R | R2, E | E2, K, V, A>;
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