import { type Predicate, type Refinement } from "./Function.js";
import * as Option from "./Option.js";
import * as Chunk from "effect/Chunk";
import { type Equivalence } from "effect/Equivalence";
export * from "effect/Chunk";
export declare const fromIterable: <A>(self: Iterable<A>) => Chunk.Chunk<A>;
export declare function groupByTChunk_<A, Key extends PropertyKey>(c: Chunk.Chunk<A>, f: (a: A) => Key): Chunk.Chunk<readonly [Key, [A, ...A[]]]>;
/**
 * Returns the first element that satisfies the predicate.
 */
export declare function findFirstMap<A, B>(f: (a: A) => Option.Option<B>): (as: Chunk.Chunk<A>) => Option.None<never> | Option.Some<B>;
export declare function toArray<T>(c: Chunk.Chunk<T>): T[];
/**
 * Remove duplicates from an array, keeping the first occurrence of an element.
 */
export declare function uniq<A>(E: Equivalence<A>): (self: Chunk.Chunk<A>) => Chunk.Chunk<A>;
/**
 * Test if a value is a member of an array. Takes a `Equivalence<A>` as a single
 * argument which returns the function to use to search for a value of type `A`
 * in an array of type `Chunk<A>`.
 */
export declare function elem<A>(E: Equivalence<A>, value: A): (self: Chunk.Chunk<A>) => boolean;
export declare const ChunkPartition: {
    <A, Pass, Fail>(f: (input: import("effect/Types").NoInfer<A>, i: number) => import("effect/Result").Result<Pass, Fail>): (self: Chunk.Chunk<A>) => [excluded: Chunk.Chunk<Fail>, satisfying: Chunk.Chunk<Pass>];
    <A, Pass, Fail>(self: Chunk.Chunk<A>, f: (input: A, i: number) => import("effect/Result").Result<Pass, Fail>): [excluded: Chunk.Chunk<Fail>, satisfying: Chunk.Chunk<Pass>];
};
export declare const findFirstSimple: {
    <A, B extends A>(self: Chunk.Chunk<A>, refinement: Refinement<A, B>): Option.Option<B>;
    <A>(self: Chunk.Chunk<A>, predicate: Predicate<A>): Option.Option<A>;
};
export declare const findLastSimple: {
    <A, B extends A>(self: Chunk.Chunk<A>, refinement: Refinement<A, B>): Option.Option<B>;
    <A>(self: Chunk.Chunk<A>, predicate: Predicate<A>): Option.Option<A>;
};
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