import type { ScanFn } from '../types/functions/mod';
import { Curry2 } from '../lib/utils/mod';
export interface Scan {
    <A, B>(fn: ScanFn<A, B>, init: B | Promise<B>, iter: AsyncIterable<A>): AsyncIterable<B>;
    <A, B>(fn: ScanFn<A, B>, init: B | Promise<B>): (iter: AsyncIterable<A>) => AsyncIterable<B>;
    <A, B>(fn: ScanFn<A, B>): Curry2<B | Promise<B>, AsyncIterable<A>, AsyncIterable<B>>;
}
export declare const scan: Scan;
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