import { Option } from '../option';
import { ReadonlyTuple } from '../../utils/tuples';
export declare const filterMap: <A, B>(f: (a: A) => Option<B>) => (fa: Generator<A, any, unknown>) => Generator<B, void, unknown>;
export declare const flatMap: <A, B>(f: (a: A) => Generator<B, any, unknown>) => (fa: Generator<A, any, unknown>) => Generator<B, void, unknown>;
export declare function flatten<A>(input: Generator<Generator<A>>): Generator<A, void, unknown>;
export declare const map: <A, B>(f: (a: A) => B) => (fa: Generator<A, any, unknown>) => Generator<B, void, unknown>;
export declare const pluck: <A, K extends keyof A>(key: K) => (fa: Generator<A, any, unknown>) => Generator<A[K], void, unknown>;
export declare const filter: <A>(f: (a: A) => boolean) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const scan: <A, B>(fn: (scan: B, item: A) => B, initial: B) => (fa: Generator<A, any, unknown>) => Generator<B, void, unknown>;
export declare const takeWhile: <A>(fn: (item: A) => boolean) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const take: (count: number) => <A>(fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const dropWhile: <A>(fn: (item: A) => boolean) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const drop: (count: number) => <A>(fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const list: <A>(fa: Generator<A, any, unknown>) => [A, Generator<A, any, unknown>];
export declare const concat: <A>(fb: Generator<A, any, unknown>) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const append: <A>(item: A) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const prepend: <A>(item: A) => (fa: Generator<A, any, unknown>) => Generator<A, void, unknown>;
export declare const cycle: (count?: number) => <A>(fa: Generator<A, any, unknown>) => Generator<A, void, undefined>;
export declare const enumerate: <A>(fa: Generator<A, any, unknown>) => Generator<[A, number], void, unknown>;
export declare function unique<A>(fa: Generator<A>): Generator<A, void, unknown>;
export declare function duplicate<A>(fa: Generator<A>): Generator<A, void, unknown>;
export declare const chunk: <N extends number>(size: N) => <T>(fa: Generator<T, any, unknown>) => Generator<ReadonlyTuple<T, N>, void, unknown>;
export declare const window: <N extends number>(size: N) => <T>(fa: Generator<T, any, unknown>) => Generator<ReadonlyTuple<T, N>, void, unknown>;
export declare const zipWith: <A, B, C>(f: (a: A, b: B) => C) => (fa: Generator<A, any, unknown>) => (fb: Generator<B, any, unknown>) => Generator<C, void, unknown>;