import type * as C from "../core";
/**
 * Composes this stream with the specified stream to create a cartesian product of elements,
 * but keeps only elements from this stream.
 * The `that` stream would be run multiple times, for every element in the `this` stream.
 */
export declare function crossLeft_<R, R1, E, E1, A, A1>(self: C.Stream<R, E, A>, that: C.Stream<R1, E1, A1>): C.Stream<R & R1, E | E1, A>;
/**
 * Composes this stream with the specified stream to create a cartesian product of elements,
 * but keeps only elements from this stream.
 * The `that` stream would be run multiple times, for every element in the `this` stream.
 *
 * @ets_data_first crossLeft_
 */
export declare function crossLeft<R1, E1, A1>(that: C.Stream<R1, E1, A1>): <R, E, A>(self: C.Stream<R, E, A>) => C.Stream<R & R1, E1 | E, A>;
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