import "@effect-ts/system/Operator";
import * as M from "@effect-ts/core/Collections/Immutable/HashMap";
import type * as HS from "@effect-ts/core/Collections/Immutable/HashSet";
import * as E from "@effect-ts/core/Either";
import * as O from "@effect-ts/core/Option";
import type { Request } from "../Request/index.js";
/**
 * A `CompletedRequestMap` is a universally quantified mapping from requests
 * of type `Request[E, A]` to results of type `Either[E, A]` for all types `E`
 * and `A`. The guarantee is that for any request of type `Request[E, A]`, if
 * there is a corresponding value in the map, that value is of type
 * `Either[E, A]`. This is used by the library to support data sources that
 * return different result types for different requests while guaranteeing that
 * results will be of the type requested.
 */
export declare class CompletedRequestMap {
    readonly map: M.HashMap<Request<any, any>, E.Either<any, any>>;
    readonly _tag = "CompletedRequestMap";
    constructor(map: M.HashMap<Request<any, any>, E.Either<any, any>>);
}
export declare function concat(a: CompletedRequestMap, b: CompletedRequestMap): CompletedRequestMap;
/**
 * Returns whether a result exists for the specified request.
 */
export declare function contains_(fa: CompletedRequestMap, request: any): boolean;
/**
 * Returns whether a result exists for the specified request.
 * @ets_data_first contains_
 */
export declare function contains(request: any): (fa: CompletedRequestMap) => boolean;
/**
 * Appends the specified result to the completed requests map.
 */
export declare function insert_<E, A>(fa: CompletedRequestMap, request: Request<E, A>, result: E.Either<E, A>): CompletedRequestMap;
/**
 * Appends the specified result to the completed requests map.
 * @ets_data_first insert_
 */
export declare function insert<E, A>(request: Request<E, A>, result: E.Either<E, A>): (fa: CompletedRequestMap) => CompletedRequestMap;
/**
 * Appends the specified optional result to the completed request map.
 */
export declare function insertOption_<E, A>(fa: CompletedRequestMap, request: Request<E, A>, result: E.Either<E, O.Option<A>>): CompletedRequestMap;
/**
 * Appends the specified optional result to the completed request map.
 * @ets_data_first insertOption_
 */
export declare function insertOption<E, A>(request: Request<E, A>, result: E.Either<E, O.Option<A>>): (fa: CompletedRequestMap) => CompletedRequestMap;
/**
 * Retrieves the result of the specified request if it exists.
 */
export declare function lookup_<E, A>(fa: CompletedRequestMap, request: Request<E, A>): O.Option<E.Either<E, A>>;
/**
 * Retrieves the result of the specified request if it exists.
 * @ets_data_first lookup_
 */
export declare function lookup<E, A>(request: Request<E, A>): (fa: CompletedRequestMap) => O.Option<E.Either<E, A>>;
/**
 * Collects all requests in a set.
 */
export declare function requests(fa: CompletedRequestMap): HS.HashSet<Request<any, any>>;
/**
 * An empty completed requests map.
 */
export declare const empty: CompletedRequestMap;
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