import { HashableEqualityComparer } from "../../collections/equalityComparison";
import { PipeBody } from "../../pipables";
import type { LinqWrapper } from "../linqWrapper";
import { SequenceElementSelector } from "./typing";
export declare function distinct<T>(comparer?: HashableEqualityComparer<T>): PipeBody<LinqWrapper<T>, LinqWrapper<T>>;
export declare function distinctBy<T, TKey>(keySelector: SequenceElementSelector<T, TKey>, comparer?: HashableEqualityComparer<TKey>): PipeBody<LinqWrapper<T>, LinqWrapper<T>>;
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