import { Effect } from "@effect/core/io/Effect/definition";
import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
/**
 * Runs an effect when the supplied partial function matches for the given
 * value, otherwise does nothing.
 * @tsplus static effect/core/io/Effect.Ops whenCaseEffect
 * @tsplus location "@effect/core/io/Effect/operations/whenCaseEffect"
 */
export declare function whenCaseEffect<R, E, A, R1, E1, B>(effect: Effect<R, E, A>, pf: (a: A) => Maybe<Effect<R1, E1, B>>): Effect<R | R1, E | E1, Maybe<B>>;
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