import { _A } from "@effect-ts/core/Effect";
import type { Either } from "@effect-ts/core/Either";
import type { Option } from "@effect-ts/core/Option";
import type { _A as _GetA, _E as _GetE } from "@effect-ts/core/Utils";
import type { Ref } from "@effect-ts/system/Ref";
import type { Request } from "../../Request/index.js";
export declare const BlockedRequestSym: unique symbol;
export declare type BlockedRequestSym = typeof BlockedRequestSym;
/**
 * A `BlockedRequest[A]` keeps track of a request of type `A` along with a
 * `Ref` containing the result of the request, existentially hiding the result
 * type. This is used internally 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 BlockedRequest<A> {
    readonly request: Request<_GetE<A>, _GetA<A>>;
    readonly result: Ref<Option<Either<_GetE<A>, _GetA<A>>>>;
    readonly [_A]: () => A;
    readonly [BlockedRequestSym]: BlockedRequestSym;
    constructor(request: Request<_GetE<A>, _GetA<A>>, result: Ref<Option<Either<_GetE<A>, _GetA<A>>>>);
}
export declare function of<A extends Request<any, any>>(request: A, result: Ref<Option<Either<_GetE<A>, _GetA<A>>>>): BlockedRequest<A>;
//# sourceMappingURL=index.d.ts.map