import { Predicate } from "../predicates";
import { Transducer } from "./transducer";
export declare class FilterTransducer<A> implements Transducer<A, A> {
    predicate: Predicate<A>;
    constructor(predicate: Predicate<A>);
    async_(iterable: AsyncIterable<A>): AsyncIterable<A>;
    sync(iterable: Iterable<A>): Iterable<A>;
}
export declare function filter<A>(predicate: Predicate<A>): FilterTransducer<A>;
export declare const accept: typeof filter;