import { AsyncOperation } from "../operation";
import { DistinctEqualFn as SyncDistinctEqualFn } from "../sync";
export type DistinctEqualFn<T> = SyncDistinctEqualFn<T>;
export declare function distinct<T>(equalityFn?: DistinctEqualFn<T>): AsyncOperation<T, AsyncIterableIterator<T>>;