import { Maybe } from "@tsplus/stdlib/data/Maybe/definition";
import { Channel } from "@effect/core/stream/Channel/definition/base";
/**
 * Returns a new channel, which is the same as this one, except its outputs
 * are filtered and transformed by the specified partial function.
 * @tsplus static effect/core/stream/Channel.Aspects collect
 * @tsplus pipeable effect/core/stream/Channel collect
 * @tsplus location "@effect/core/stream/Channel/operations/collect"
 */
export declare function collect<Env, InErr, InElem, InDone, OutErr, OutElem, OutElem2, OutDone>(pf: (o: OutElem) => Maybe<OutElem2>): (self: Channel<Env, InErr, InElem, InDone, OutErr, OutElem, OutDone>) => Channel<Env, InErr, InElem, InDone, OutErr, OutElem2, OutDone>;
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