/**
 * Resolves data requests made with `Effect.request`.
 *
 * A `Request` describes what a fiber needs, while a `RequestResolver` describes
 * how to collect request entries, group them into batches, run backend work,
 * and complete each waiting entry. This module includes constructors for common
 * resolver shapes and tools for controlling batching, grouping, delays,
 * tracing, caching, racing, hooks around resolver execution, and persistence.
 *
 * @stability stable
 * @since 2.0.0
 */
import type { NonEmptyArray } from "./Array.ts";
import * as Cache from "./Cache.ts";
import type * as Duration from "./Duration.ts";
import * as Effect from "./Effect.ts";
import type * as Persistable from "./persistence/Persistable.ts";
import * as Persistence from "./persistence/Persistence.ts";
import { type Pipeable } from "./Pipeable.ts";
import type * as Request from "./Request.ts";
import type * as Schema from "./Schema.ts";
import type { Scope } from "./Scope.ts";
import * as Tracer from "./Tracer.ts";
import type * as Types from "./Types.ts";
declare const TypeId = "~effect/RequestResolver";
/**
 * A resolver that executes and completes batched `Request` entries.
 *
 * **Details**
 *
 * A resolver controls how requests are grouped, delayed, optionally
 * pre-checked, and finally run. Its `runAll` method receives a non-empty batch
 * of `Request.Entry` values for a single batch key and must complete every
 * received entry, usually by calling `completeUnsafe` or one of the `Request`
 * completion helpers.
 *
 * **Gotchas**
 *
 * If a resolver finishes without completing an entry, the waiting request fails
 * because the resolver did not supply a result.
 *
 * **Example** (Defining a request resolver)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetUserRequest extends Request.Request<string, Error> {
 *   readonly _tag: "GetUserRequest"
 *   readonly id: number
 * }
 * const GetUserRequest = Request.tagged<GetUserRequest>("GetUserRequest")
 *
 * // In practice, you would typically use RequestResolver.make() instead
 * const resolver = RequestResolver.make<GetUserRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`User ${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * const program = Effect.request(GetUserRequest({ id: 1 }), resolver)
 * await Effect.runPromise(program) // => "User 1"
 * ```
 *
 * @stability stable
 * @category models
 * @since 2.0.0
 */
export interface RequestResolver<in A extends Request.Any> extends RequestResolver.Variance<A>, Pipeable {
    readonly delay: Effect.Effect<void>;
    /**
     * Get a batch key for the given request.
     */
    batchKey(entry: Request.Entry<A>): unknown;
    /**
     * An optional pre-check function that can be used to filter requests before
     * they are added to a batch. If the function returns `false`, the request
     * will not be processed.
     */
    readonly preCheck: ((entry: Request.Entry<A>) => boolean) | undefined;
    /**
     * Should the resolver continue collecting requests? Otherwise, it will
     * immediately execute the collected requests cutting the delay short.
     */
    collectWhile(entries: ReadonlySet<Request.Entry<A>>): boolean;
    /**
     * Execute a collection of requests.
     */
    runAll(entries: NonEmptyArray<Request.Entry<A>>, key: unknown): Effect.Effect<void, Request.Error<A>>;
}
/**
 * Namespace containing type-level helpers associated with `RequestResolver`.
 *
 * @stability stable
 * @since 2.0.0
 */
export declare namespace RequestResolver {
    /**
     * Variance marker carried by every `RequestResolver`.
     *
     * **Details**
     *
     * This marker preserves the request type accepted by the resolver for
     * Effect's type-level machinery. Users normally do not implement it directly.
     *
     * @category models
     * @since 2.0.0
     */
    interface Variance<in A> {
        readonly [TypeId]: {
            readonly _A: Types.Contravariant<A>;
        };
    }
}
/**
 * Returns `true` if the specified value is a `RequestResolver`, `false` otherwise.
 *
 * **When to use**
 *
 * Use to narrow unknown values before passing them to APIs that require a
 * `RequestResolver`.
 *
 * @see {@link RequestResolver} for the type narrowed by this guard
 *
 * @stability stable
 * @category guards
 * @since 2.0.0
 */
export declare const isRequestResolver: (u: unknown) => u is RequestResolver<any>;
/**
 * Creates a request resolver with fine-grained
 * control over its behavior.
 *
 * **When to use**
 *
 * Use when you need to supply the resolver batching primitives directly,
 * including the batch key, optional pre-check, delay effect, collection cutoff,
 * and batch runner.
 *
 * **Details**
 *
 * `batchKey` groups request entries, `delay` schedules batch execution,
 * `collectWhile` can end collection early, and `runAll` receives a non-empty
 * batch for one key. The batch runs with the context of the caller that created
 * it, even when a later caller ends collection. Each entry retains its own
 * caller context in `entry.context`.
 *
 * **Gotchas**
 *
 * Accepted entries must be completed. If `runAll` succeeds with incomplete
 * entries, waiting requests fail. If `preCheck` returns `false`, the entry is
 * not batched, so it must be completed or linked to another completion path.
 *
 * @see {@link make} for constructing a resolver from a batch runner
 * @see {@link makeGrouped} for constructing a resolver that groups requests by key
 *
 * @stability stable
 * @category constructors
 * @since 4.0.0
 */
export declare const makeWith: <A extends Request.Any>(options: {
    readonly batchKey: (request: Request.Entry<A>) => unknown;
    readonly preCheck?: ((entry: Request.Entry<A>) => boolean) | undefined;
    readonly delay: Effect.Effect<void>;
    readonly collectWhile: (requests: ReadonlySet<Request.Entry<A>>) => boolean;
    readonly runAll: (entries: NonEmptyArray<Request.Entry<A>>, key: unknown) => Effect.Effect<void, Request.Error<A>>;
}) => RequestResolver<A>;
/**
 * Constructs a request resolver with the specified method to run requests.
 *
 * **Details**
 *
 * `runAll` runs with the context of the caller that created the batch, including
 * when `collectWhile` ends collection early (for example with `batchN`).
 *
 * **Gotchas**
 *
 * Different caller contexts do not split batches. Use `entry.context` for
 * per-entry services, or `makeGrouped` to separate requests by the services
 * that affect the backend operation, such as tenant or authorization settings.
 *
 * **Example** (Creating a request resolver)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * // Define a request type
 * interface GetUserRequest extends Request.Request<string, Error> {
 *   readonly _tag: "GetUserRequest"
 *   readonly id: number
 * }
 * const GetUserRequest = Request.tagged<GetUserRequest>("GetUserRequest")
 *
 * // Create a resolver that handles the requests
 * const UserResolver = RequestResolver.make<GetUserRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       // Complete each request with a result
 *       entry.completeUnsafe(Exit.succeed(`User ${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * // Use the resolver to handle requests
 * const getUserEffect = Effect.request(GetUserRequest({ id: 123 }), UserResolver)
 * await Effect.runPromise(getUserEffect) // => "User 123"
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const make: <A extends Request.Any>(runAll: (entries: NonEmptyArray<Request.Entry<A>>, key: unknown) => Effect.Effect<void, Request.Error<A>>) => RequestResolver<A>;
/**
 * Constructs a request resolver with the requests grouped by a calculated key.
 *
 * **Details**
 *
 * The key can use the Equal trait to determine if two keys are equal.
 * Each batch runs with the context of the caller that created that batch,
 * whether collection ends after the delay or at a `collectWhile` cutoff.
 *
 * **Gotchas**
 *
 * Caller services that are not included in the key do not split batches. Include
 * tenant or authorization settings in the key when they affect the backend
 * operation, or read each caller's services from `entry.context`.
 *
 * **Example** (Grouping requests by key)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetUserByRole extends Request.Request<string, Error> {
 *   readonly _tag: "GetUserByRole"
 *   readonly role: string
 *   readonly id: number
 * }
 * const GetUserByRole = Request.tagged<GetUserByRole>("GetUserByRole")
 *
 * const batches: Array<[role: string, size: number]> = []
 *
 * // Group requests by role for efficient batch processing
 * const UserByRoleResolver = RequestResolver.makeGrouped<GetUserByRole, string>({
 *   key: ({ request }) => request.role,
 *   resolver: (entries, role) =>
 *     Effect.sync(() => {
 *       batches.push([role, entries.length])
 *       for (const entry of entries) {
 *         entry.completeUnsafe(
 *           Exit.succeed(`User ${entry.request.id} with role ${role}`)
 *         )
 *       }
 *     })
 * })
 *
 * const program = Effect.all([
 *   Effect.request<GetUserByRole>(GetUserByRole({ role: "admin", id: 1 }), UserByRoleResolver),
 *   Effect.request<GetUserByRole>(GetUserByRole({ role: "admin", id: 2 }), UserByRoleResolver)
 * ] as const, { concurrency: "unbounded" })
 * const result = await Effect.runPromise(program)
 *
 * batches // => [["admin", 2]]
 * result // => ["User 1 with role admin", "User 2 with role admin"]
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 4.0.0
 */
export declare const makeGrouped: <A extends Request.Any, K>(options: {
    readonly key: (entry: Request.Entry<A>) => K;
    readonly resolver: (entries: NonEmptyArray<Request.Entry<A>>, key: K) => Effect.Effect<void, Request.Error<A>>;
}) => RequestResolver<A>;
/**
 * Constructs a request resolver from a pure function.
 *
 * **Example** (Creating a resolver from a pure function)
 *
 * ```ts import.meta.vitest
 * import { Effect, Request, RequestResolver } from "effect"
 *
 * interface GetSquareRequest extends Request.Request<number> {
 *   readonly _tag: "GetSquareRequest"
 *   readonly value: number
 * }
 * const GetSquareRequest = Request.tagged<GetSquareRequest>("GetSquareRequest")
 *
 * // Create a resolver from a pure function
 * const SquareResolver = RequestResolver.fromFunction<GetSquareRequest>(
 *   (entry) => entry.request.value * entry.request.value
 * )
 *
 * // Usage
 * const getSquareEffect = Effect.request(
 *   GetSquareRequest({ value: 5 }),
 *   SquareResolver
 * )
 * await Effect.runPromise(getSquareEffect) // => 25
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const fromFunction: <A extends Request.Any>(f: (entry: Request.Entry<A>) => Request.Success<A>) => RequestResolver<A>;
/**
 * Constructs a request resolver from a pure function that takes a list of requests
 * and returns a list of results of the same size. Each item in the result
 * list must correspond to the item at the same index in the request list.
 *
 * **Example** (Batching pure request handling)
 *
 * ```ts import.meta.vitest
 * import { Effect, Request, RequestResolver } from "effect"
 *
 * interface GetDoubleRequest extends Request.Request<number> {
 *   readonly _tag: "GetDoubleRequest"
 *   readonly value: number
 * }
 * const GetDoubleRequest = Request.tagged<GetDoubleRequest>("GetDoubleRequest")
 *
 * // Create a resolver that processes multiple requests in a batch
 * const DoubleResolver = RequestResolver.fromFunctionBatched<GetDoubleRequest>(
 *   (entries) => entries.map((entry) => entry.request.value * 2)
 * )
 *
 * // Usage with multiple requests
 * const effects = [1, 2, 3].map((value) =>
 *   Effect.request(GetDoubleRequest({ value }), DoubleResolver)
 * )
 * const batchedEffect = Effect.all(effects)
 * await Effect.runPromise(batchedEffect) // => [2, 4, 6]
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const fromFunctionBatched: <A extends Request.Any>(f: (entries: NonEmptyArray<Request.Entry<A>>) => Iterable<Request.Success<A>>) => RequestResolver<A>;
/**
 * Constructs a request resolver from an effectual function.
 *
 * **Details**
 *
 * Each entry's effect runs with its own caller context. Services provided around
 * `runAll` are not visible to it; provide them inside `f` instead. Entries with
 * different caller contexts can still share a batch.
 *
 * With `withSpan`, spans created inside `f` are children of the caller's span,
 * not the resolver span. The resolver span still links to each caller's span.
 *
 * **Example** (Creating a resolver from an effectful function)
 *
 * ```ts import.meta.vitest
 * import { Effect, Request, RequestResolver } from "effect"
 *
 * interface GetUserFromAPIRequest extends Request.Request<string> {
 *   readonly _tag: "GetUserFromAPIRequest"
 *   readonly id: number
 * }
 * const GetUserFromAPIRequest = Request.tagged<GetUserFromAPIRequest>(
 *   "GetUserFromAPIRequest"
 * )
 *
 * // Create a resolver that uses effects (like HTTP calls)
 * const UserAPIResolver = RequestResolver.fromEffect<GetUserFromAPIRequest>(
 *   (entry) => Effect.succeed(`User ${entry.request.id} from API`)
 * )
 *
 * // Usage
 * const getUserEffect = Effect.request(
 *   GetUserFromAPIRequest({ id: 123 }),
 *   UserAPIResolver
 * )
 * await Effect.runPromise(getUserEffect) // => "User 123 from API"
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const fromEffect: <A extends Request.Any>(f: (entry: Request.Entry<A>) => Effect.Effect<Request.Success<A>, Request.Error<A>>) => RequestResolver<A>;
/**
 * Constructs a request resolver from a list of tags paired to functions, that takes
 * a list of requests and returns a list of results of the same size. Each item
 * in the result list must correspond to the item at the same index in the
 * request list.
 *
 * **Example** (Handling tagged request batches)
 *
 * ```ts import.meta.vitest
 * import { Effect, Request, RequestResolver } from "effect"
 *
 * interface GetUser extends Request.Request<string, Error> {
 *   readonly _tag: "GetUser"
 *   readonly id: number
 * }
 *
 * interface GetPost extends Request.Request<string, Error> {
 *   readonly _tag: "GetPost"
 *   readonly id: number
 * }
 *
 * type MyRequest = GetUser | GetPost
 * const GetUser = Request.tagged<GetUser>("GetUser")
 * const GetPost = Request.tagged<GetPost>("GetPost")
 *
 * // Create a resolver that handles different request types
 * const MyResolver = RequestResolver.fromEffectTagged<MyRequest>()({
 *   GetUser: (requests) =>
 *     Effect.succeed(requests.map((req) => `User ${req.request.id}`)),
 *   GetPost: (requests) =>
 *     Effect.succeed(requests.map((req) => `Post ${req.request.id}`))
 * })
 *
 * const program = Effect.all([
 *   Effect.request<GetUser>(GetUser({ id: 1 }), MyResolver),
 *   Effect.request<GetPost>(GetPost({ id: 2 }), MyResolver)
 * ] as const)
 * await Effect.runPromise(program) // => ["User 1", "Post 2"]
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const fromEffectTagged: <A extends Request.Any & {
    readonly _tag: string;
}>() => <Fns extends { readonly [Tag in A["_tag"]]: [Extract<A, {
    readonly _tag: Tag;
}>] extends [infer Req] ? Req extends Request.Request<infer ReqA, infer ReqE, infer _ReqR> ? (requests: Array<Request.Entry<Req>>) => Effect.Effect<Iterable<ReqA>, ReqE> : never : never; }>(fns: Fns) => RequestResolver<A>;
/**
 * Sets the batch delay effect for this request resolver.
 *
 * **Example** (Setting an effectful batch delay)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed("data"))
 *     }
 *   })
 * )
 *
 * let delayRan = false
 *
 * // Set a custom delay effect
 * const resolverWithCustomDelay = RequestResolver.setDelayEffect(
 *   resolver,
 *   Effect.sync(() => {
 *     delayRan = true
 *   })
 * )
 *
 * await Effect.runPromise(resolverWithCustomDelay.delay)
 * Array.of(delayRan, RequestResolver.isRequestResolver(resolverWithCustomDelay)) // => [true, true]
 * ```
 *
 * @stability stable
 * @category delays & timeouts
 * @since 4.0.0
 */
export declare const setDelayEffect: {
    /**
     * Sets the batch delay effect for this request resolver.
     *
     * **Example** (Setting an effectful batch delay)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * let delayRan = false
     *
     * // Set a custom delay effect
     * const resolverWithCustomDelay = RequestResolver.setDelayEffect(
     *   resolver,
     *   Effect.sync(() => {
     *     delayRan = true
     *   })
     * )
     *
     * await Effect.runPromise(resolverWithCustomDelay.delay)
     * Array.of(delayRan, RequestResolver.isRequestResolver(resolverWithCustomDelay)) // => [true, true]
     * ```
     *
     * @stability stable
     * @category delays & timeouts
     * @since 4.0.0
     */
    (delay: Effect.Effect<void>): <A extends Request.Any>(self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Sets the batch delay effect for this request resolver.
     *
     * **Example** (Setting an effectful batch delay)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * let delayRan = false
     *
     * // Set a custom delay effect
     * const resolverWithCustomDelay = RequestResolver.setDelayEffect(
     *   resolver,
     *   Effect.sync(() => {
     *     delayRan = true
     *   })
     * )
     *
     * await Effect.runPromise(resolverWithCustomDelay.delay)
     * Array.of(delayRan, RequestResolver.isRequestResolver(resolverWithCustomDelay)) // => [true, true]
     * ```
     *
     * @stability stable
     * @category delays & timeouts
     * @since 4.0.0
     */
    <A extends Request.Any>(self: RequestResolver<A>, delay: Effect.Effect<void>): RequestResolver<A>;
};
/**
 * Sets the batch delay window for this request resolver to the specified duration.
 *
 * **Example** (Setting a batch delay)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed("data"))
 *     }
 *   })
 * )
 *
 * // Add a 100ms delay to batch requests together
 * const delayedResolver = RequestResolver.setDelay(resolver, "100 millis")
 *
 * const program = Effect.request(GetDataRequest(), delayedResolver)
 * await Effect.runPromise(program) // => "data"
 * ```
 *
 * @stability stable
 * @category delays & timeouts
 * @since 4.0.0
 */
export declare const setDelay: {
    /**
     * Sets the batch delay window for this request resolver to the specified duration.
     *
     * **Example** (Setting a batch delay)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * // Add a 100ms delay to batch requests together
     * const delayedResolver = RequestResolver.setDelay(resolver, "100 millis")
     *
     * const program = Effect.request(GetDataRequest(), delayedResolver)
     * await Effect.runPromise(program) // => "data"
     * ```
     *
     * @stability stable
     * @category delays & timeouts
     * @since 4.0.0
     */
    (duration: Duration.Input): <A extends Request.Any>(self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Sets the batch delay window for this request resolver to the specified duration.
     *
     * **Example** (Setting a batch delay)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * // Add a 100ms delay to batch requests together
     * const delayedResolver = RequestResolver.setDelay(resolver, "100 millis")
     *
     * const program = Effect.request(GetDataRequest(), delayedResolver)
     * await Effect.runPromise(program) // => "data"
     * ```
     *
     * @stability stable
     * @category delays & timeouts
     * @since 4.0.0
     */
    <A extends Request.Any>(self: RequestResolver<A>, duration: Duration.Input): RequestResolver<A>;
};
/**
 * Wraps request resolver execution between `before` and `after` effects.
 *
 * **Example** (Running effects around request resolution)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * const events: Array<string> = []
 *
 * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed("data"))
 *     }
 *   })
 * )
 *
 * // Add setup and cleanup around request execution
 * const resolverWithAround = RequestResolver.around(
 *   resolver,
 *   (entries) =>
 *     Effect.gen(function*() {
 *       events.push(`Starting batch of ${entries.length} requests`)
 *       return entries.length
 *     }),
 *   (entries, initialSize) =>
 *     Effect.sync(() => {
 *       events.push(`Batch completed with ${entries.length} requests (started with ${initialSize})`)
 *     })
 * )
 *
 * const program = Effect.request(GetDataRequest(), resolverWithAround)
 * const result = await Effect.runPromise(program)
 *
 * events // => ["Starting batch of 1 requests", "Batch completed with 1 requests (started with 1)"]
 * result // => "data"
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const around: {
    /**
     * Wraps request resolver execution between `before` and `after` effects.
     *
     * **Example** (Running effects around request resolution)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const events: Array<string> = []
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * // Add setup and cleanup around request execution
     * const resolverWithAround = RequestResolver.around(
     *   resolver,
     *   (entries) =>
     *     Effect.gen(function*() {
     *       events.push(`Starting batch of ${entries.length} requests`)
     *       return entries.length
     *     }),
     *   (entries, initialSize) =>
     *     Effect.sync(() => {
     *       events.push(`Batch completed with ${entries.length} requests (started with ${initialSize})`)
     *     })
     * )
     *
     * const program = Effect.request(GetDataRequest(), resolverWithAround)
     * const result = await Effect.runPromise(program)
     *
     * events // => ["Starting batch of 1 requests", "Batch completed with 1 requests (started with 1)"]
     * result // => "data"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A extends Request.Any, A2, X>(before: (entries: NonEmptyArray<Request.Entry<NoInfer<A>>>) => Effect.Effect<A2, Request.Error<A>>, after: (entries: NonEmptyArray<Request.Entry<NoInfer<A>>>, a: A2) => Effect.Effect<X, Request.Error<A>>): (self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Wraps request resolver execution between `before` and `after` effects.
     *
     * **Example** (Running effects around request resolution)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const events: Array<string> = []
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed("data"))
     *     }
     *   })
     * )
     *
     * // Add setup and cleanup around request execution
     * const resolverWithAround = RequestResolver.around(
     *   resolver,
     *   (entries) =>
     *     Effect.gen(function*() {
     *       events.push(`Starting batch of ${entries.length} requests`)
     *       return entries.length
     *     }),
     *   (entries, initialSize) =>
     *     Effect.sync(() => {
     *       events.push(`Batch completed with ${entries.length} requests (started with ${initialSize})`)
     *     })
     * )
     *
     * const program = Effect.request(GetDataRequest(), resolverWithAround)
     * const result = await Effect.runPromise(program)
     *
     * events // => ["Starting batch of 1 requests", "Batch completed with 1 requests (started with 1)"]
     * result // => "data"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A extends Request.Any, A2, X>(self: RequestResolver<A>, before: (entries: NonEmptyArray<Request.Entry<NoInfer<A>>>) => Effect.Effect<A2, Request.Error<A>>, after: (entries: NonEmptyArray<Request.Entry<NoInfer<A>>>, a: A2) => Effect.Effect<X, Request.Error<A>>): RequestResolver<A>;
};
/**
 * Creates a request resolver that never executes requests.
 *
 * **When to use**
 *
 * Use as a resolver value for request types that are statically impossible and
 * should never be issued.
 *
 * **Gotchas**
 *
 * If this resolver is used for an actual request, the request waits forever
 * unless the fiber is interrupted.
 *
 * @see {@link make} for constructing a resolver that executes batches and completes request entries
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const never: RequestResolver<never>;
/**
 * Returns a request resolver that collects at most `n` requests into each
 * batch.
 *
 * **Details**
 *
 * When more than `n` requests are waiting for the same resolver and batch key,
 * the current batch is run and additional requests are collected into later
 * batches. Finite fractional values of `n` are rounded down. `NaN` and
 * non-positive values are treated as `1` so that every batch remains non-empty.
 *
 * **Example** (Limiting parallel request batches)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 *   readonly id: number
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * const batchSizes: Array<number> = []
 *
 * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.sync(() => {
 *     batchSizes.push(entries.length)
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * // Limit batches to maximum 5 requests
 * const limitedResolver = RequestResolver.batchN(resolver, 5)
 *
 * // When more than 5 requests are made, they'll be split into multiple batches
 * const requests = Array.from(
 *   { length: 12 },
 *   (_, i) => Effect.request(GetDataRequest({ id: i }), limitedResolver)
 * )
 *
 * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
 * batchSizes // => [5, 5, 2]
 *
 * result.length // => 12
 *
 * Array.of(result[0], result[11]) // => ["data-0", "data-11"]
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const batchN: {
    /**
     * Returns a request resolver that collects at most `n` requests into each
     * batch.
     *
     * **Details**
     *
     * When more than `n` requests are waiting for the same resolver and batch key,
     * the current batch is run and additional requests are collected into later
     * batches. Finite fractional values of `n` are rounded down. `NaN` and
     * non-positive values are treated as `1` so that every batch remains non-empty.
     *
     * **Example** (Limiting parallel request batches)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const batchSizes: Array<number> = []
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     batchSizes.push(entries.length)
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Limit batches to maximum 5 requests
     * const limitedResolver = RequestResolver.batchN(resolver, 5)
     *
     * // When more than 5 requests are made, they'll be split into multiple batches
     * const requests = Array.from(
     *   { length: 12 },
     *   (_, i) => Effect.request(GetDataRequest({ id: i }), limitedResolver)
     * )
     *
     * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
     * batchSizes // => [5, 5, 2]
     *
     * result.length // => 12
     *
     * Array.of(result[0], result[11]) // => ["data-0", "data-11"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    (n: number): <A extends Request.Any>(self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Returns a request resolver that collects at most `n` requests into each
     * batch.
     *
     * **Details**
     *
     * When more than `n` requests are waiting for the same resolver and batch key,
     * the current batch is run and additional requests are collected into later
     * batches. Finite fractional values of `n` are rounded down. `NaN` and
     * non-positive values are treated as `1` so that every batch remains non-empty.
     *
     * **Example** (Limiting parallel request batches)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const batchSizes: Array<number> = []
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     batchSizes.push(entries.length)
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Limit batches to maximum 5 requests
     * const limitedResolver = RequestResolver.batchN(resolver, 5)
     *
     * // When more than 5 requests are made, they'll be split into multiple batches
     * const requests = Array.from(
     *   { length: 12 },
     *   (_, i) => Effect.request(GetDataRequest({ id: i }), limitedResolver)
     * )
     *
     * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
     * batchSizes // => [5, 5, 2]
     *
     * result.length // => 12
     *
     * Array.of(result[0], result[11]) // => ["data-0", "data-11"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A extends Request.Any>(self: RequestResolver<A>, n: number): RequestResolver<A>;
};
/**
 * Transforms a request resolver by grouping requests using the specified key
 * function.
 *
 * **Example** (Grouping resolver requests)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetUserRequest extends Request.Request<string> {
 *   readonly _tag: "GetUserRequest"
 *   readonly userId: number
 *   readonly department: string
 * }
 * const GetUserRequest = Request.tagged<GetUserRequest>("GetUserRequest")
 *
 * const batchSizes: Array<number> = []
 *
 * const resolver = RequestResolver.make<GetUserRequest>((entries) =>
 *   Effect.sync(() => {
 *     batchSizes.push(entries.length)
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`User ${entry.request.userId}`))
 *     }
 *   })
 * )
 *
 * // Group requests by department for more efficient processing
 * const groupedResolver = RequestResolver.grouped(
 *   resolver,
 *   ({ request }) => request.department
 * )
 *
 * // Requests for the same department will be batched together
 * const requests = [
 *   Effect.request(
 *     GetUserRequest({ userId: 1, department: "Engineering" }),
 *     groupedResolver
 *   ),
 *   Effect.request(
 *     GetUserRequest({ userId: 2, department: "Engineering" }),
 *     groupedResolver
 *   ),
 *   Effect.request(
 *     GetUserRequest({ userId: 3, department: "Marketing" }),
 *     groupedResolver
 *   )
 * ]
 *
 * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
 * batchSizes.sort()
 *
 * batchSizes // => [1, 2]
 *
 * result // => ["User 1", "User 2", "User 3"]
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 4.0.0
 */
export declare const grouped: {
    /**
     * Transforms a request resolver by grouping requests using the specified key
     * function.
     *
     * **Example** (Grouping resolver requests)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetUserRequest extends Request.Request<string> {
     *   readonly _tag: "GetUserRequest"
     *   readonly userId: number
     *   readonly department: string
     * }
     * const GetUserRequest = Request.tagged<GetUserRequest>("GetUserRequest")
     *
     * const batchSizes: Array<number> = []
     *
     * const resolver = RequestResolver.make<GetUserRequest>((entries) =>
     *   Effect.sync(() => {
     *     batchSizes.push(entries.length)
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`User ${entry.request.userId}`))
     *     }
     *   })
     * )
     *
     * // Group requests by department for more efficient processing
     * const groupedResolver = RequestResolver.grouped(
     *   resolver,
     *   ({ request }) => request.department
     * )
     *
     * // Requests for the same department will be batched together
     * const requests = [
     *   Effect.request(
     *     GetUserRequest({ userId: 1, department: "Engineering" }),
     *     groupedResolver
     *   ),
     *   Effect.request(
     *     GetUserRequest({ userId: 2, department: "Engineering" }),
     *     groupedResolver
     *   ),
     *   Effect.request(
     *     GetUserRequest({ userId: 3, department: "Marketing" }),
     *     groupedResolver
     *   )
     * ]
     *
     * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
     * batchSizes.sort()
     *
     * batchSizes // => [1, 2]
     *
     * result // => ["User 1", "User 2", "User 3"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A extends Request.Any, K>(f: (entry: Request.Entry<A>) => K): (self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Transforms a request resolver by grouping requests using the specified key
     * function.
     *
     * **Example** (Grouping resolver requests)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetUserRequest extends Request.Request<string> {
     *   readonly _tag: "GetUserRequest"
     *   readonly userId: number
     *   readonly department: string
     * }
     * const GetUserRequest = Request.tagged<GetUserRequest>("GetUserRequest")
     *
     * const batchSizes: Array<number> = []
     *
     * const resolver = RequestResolver.make<GetUserRequest>((entries) =>
     *   Effect.sync(() => {
     *     batchSizes.push(entries.length)
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`User ${entry.request.userId}`))
     *     }
     *   })
     * )
     *
     * // Group requests by department for more efficient processing
     * const groupedResolver = RequestResolver.grouped(
     *   resolver,
     *   ({ request }) => request.department
     * )
     *
     * // Requests for the same department will be batched together
     * const requests = [
     *   Effect.request(
     *     GetUserRequest({ userId: 1, department: "Engineering" }),
     *     groupedResolver
     *   ),
     *   Effect.request(
     *     GetUserRequest({ userId: 2, department: "Engineering" }),
     *     groupedResolver
     *   ),
     *   Effect.request(
     *     GetUserRequest({ userId: 3, department: "Marketing" }),
     *     groupedResolver
     *   )
     * ]
     *
     * const result = await Effect.runPromise(Effect.all(requests, { concurrency: "unbounded" }))
     * batchSizes.sort()
     *
     * batchSizes // => [1, 2]
     *
     * result // => ["User 1", "User 2", "User 3"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A extends Request.Any, K>(self: RequestResolver<A>, f: (entry: Request.Entry<A>) => K): RequestResolver<A>;
};
/**
 * Returns a request resolver that sends each batch to both resolvers and
 * completes with the first resolver to finish.
 *
 * **Details**
 *
 * The losing resolver run is interrupted after the winning resolver completes
 * the batch.
 *
 * **Example** (Racing request resolvers)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 *   readonly id: number
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * // Fast resolver (simulating cache)
 * const fastResolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.gen(function*() {
 *     yield* Effect.sleep("10 millis")
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`fast-${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * // Slow resolver (simulating database)
 * const slowResolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.gen(function*() {
 *     yield* Effect.sleep("100 millis")
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`slow-${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * // Race resolvers - will use whichever completes first
 * const racingResolver = RequestResolver.race(fastResolver, slowResolver)
 * const program = Effect.request(GetDataRequest({ id: 1 }), racingResolver)
 * await Effect.runPromise(program) // => "fast-1"
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const race: {
    /**
     * Returns a request resolver that sends each batch to both resolvers and
     * completes with the first resolver to finish.
     *
     * **Details**
     *
     * The losing resolver run is interrupted after the winning resolver completes
     * the batch.
     *
     * **Example** (Racing request resolvers)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * // Fast resolver (simulating cache)
     * const fastResolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.gen(function*() {
     *     yield* Effect.sleep("10 millis")
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`fast-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Slow resolver (simulating database)
     * const slowResolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.gen(function*() {
     *     yield* Effect.sleep("100 millis")
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`slow-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Race resolvers - will use whichever completes first
     * const racingResolver = RequestResolver.race(fastResolver, slowResolver)
     * const program = Effect.request(GetDataRequest({ id: 1 }), racingResolver)
     * await Effect.runPromise(program) // => "fast-1"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A2 extends Request.Any>(that: RequestResolver<A2>): <A extends Request.Any>(self: RequestResolver<A>) => RequestResolver<A2 & A>;
    /**
     * Returns a request resolver that sends each batch to both resolvers and
     * completes with the first resolver to finish.
     *
     * **Details**
     *
     * The losing resolver run is interrupted after the winning resolver completes
     * the batch.
     *
     * **Example** (Racing request resolvers)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * // Fast resolver (simulating cache)
     * const fastResolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.gen(function*() {
     *     yield* Effect.sleep("10 millis")
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`fast-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Slow resolver (simulating database)
     * const slowResolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.gen(function*() {
     *     yield* Effect.sleep("100 millis")
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`slow-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Race resolvers - will use whichever completes first
     * const racingResolver = RequestResolver.race(fastResolver, slowResolver)
     * const program = Effect.request(GetDataRequest({ id: 1 }), racingResolver)
     * await Effect.runPromise(program) // => "fast-1"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A extends Request.Any, A2 extends Request.Any>(self: RequestResolver<A>, that: RequestResolver<A2>): RequestResolver<A & A2>;
};
/**
 * Adds a tracing span to the request resolver, which will also add any span
 * links from the request's.
 *
 * **Example** (Adding a tracing span)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, Request, RequestResolver } from "effect"
 *
 * interface GetDataRequest extends Request.Request<string> {
 *   readonly _tag: "GetDataRequest"
 *   readonly id: number
 * }
 * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
 *
 * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
 *   Effect.sync(() => {
 *     for (const entry of entries) {
 *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
 *     }
 *   })
 * )
 *
 * // Add tracing span with custom name and attributes
 * const tracedResolver = RequestResolver.withSpan(
 *   resolver,
 *   "user-data-resolver",
 *   {
 *     attributes: {
 *       "resolver.type": "user-data",
 *       "resolver.version": "1.0"
 *     }
 *   }
 * )
 *
 * // Spans will automatically include batch size and request links
 * const effect = Effect.request(GetDataRequest({ id: 123 }), tracedResolver)
 * await Effect.runPromise(effect) // => "data-123"
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 4.0.0
 */
export declare const withSpan: {
    /**
     * Adds a tracing span to the request resolver, which will also add any span
     * links from the request's.
     *
     * **Example** (Adding a tracing span)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Add tracing span with custom name and attributes
     * const tracedResolver = RequestResolver.withSpan(
     *   resolver,
     *   "user-data-resolver",
     *   {
     *     attributes: {
     *       "resolver.type": "user-data",
     *       "resolver.version": "1.0"
     *     }
     *   }
     * )
     *
     * // Spans will automatically include batch size and request links
     * const effect = Effect.request(GetDataRequest({ id: 123 }), tracedResolver)
     * await Effect.runPromise(effect) // => "data-123"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A extends Request.Any>(name: string, options?: Tracer.SpanOptions | ((entries: NonEmptyArray<Request.Entry<A>>) => Tracer.SpanOptions) | undefined): (self: RequestResolver<A>) => RequestResolver<A>;
    /**
     * Adds a tracing span to the request resolver, which will also add any span
     * links from the request's.
     *
     * **Example** (Adding a tracing span)
     *
     * ```ts import.meta.vitest
     * import { Effect, Exit, Request, RequestResolver } from "effect"
     *
     * interface GetDataRequest extends Request.Request<string> {
     *   readonly _tag: "GetDataRequest"
     *   readonly id: number
     * }
     * const GetDataRequest = Request.tagged<GetDataRequest>("GetDataRequest")
     *
     * const resolver = RequestResolver.make<GetDataRequest>((entries) =>
     *   Effect.sync(() => {
     *     for (const entry of entries) {
     *       entry.completeUnsafe(Exit.succeed(`data-${entry.request.id}`))
     *     }
     *   })
     * )
     *
     * // Add tracing span with custom name and attributes
     * const tracedResolver = RequestResolver.withSpan(
     *   resolver,
     *   "user-data-resolver",
     *   {
     *     attributes: {
     *       "resolver.type": "user-data",
     *       "resolver.version": "1.0"
     *     }
     *   }
     * )
     *
     * // Spans will automatically include batch size and request links
     * const effect = Effect.request(GetDataRequest({ id: 123 }), tracedResolver)
     * await Effect.runPromise(effect) // => "data-123"
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A extends Request.Any>(self: RequestResolver<A>, name: string, options?: Tracer.SpanOptions | ((entries: NonEmptyArray<Request.Entry<A>>) => Tracer.SpanOptions) | undefined): RequestResolver<A>;
};
/**
 * Wraps a request resolver in a cache, allowing it to cache results up to a
 * specified capacity and optional time-to-live.
 *
 * **When to use**
 *
 * Use to turn a request resolver into a first-class `Cache` when callers need
 * cache lookup, refresh, invalidation, or inspection around request results.
 *
 * **Details**
 *
 * The request value is the cache key. Cache misses run the resolver via
 * `Effect.request`, `timeToLive` receives the request `Exit` and the request,
 * and `requireServicesAt` controls whether services are required at lookup time
 * or construction time.
 *
 * **Gotchas**
 *
 * Cache hits depend on the request value's equality semantics.
 *
 * @see {@link withCache} for keeping caching behind a resolver used with `Effect.request`
 * @see {@link persisted} for storing persistable request results outside process memory
 * @see {@link Cache.Cache} for operations available on the returned cache
 *
 * @stability stable
 * @category caching
 * @since 4.0.0
 */
export declare const asCache: {
    /**
     * Wraps a request resolver in a cache, allowing it to cache results up to a
     * specified capacity and optional time-to-live.
     *
     * **When to use**
     *
     * Use to turn a request resolver into a first-class `Cache` when callers need
     * cache lookup, refresh, invalidation, or inspection around request results.
     *
     * **Details**
     *
     * The request value is the cache key. Cache misses run the resolver via
     * `Effect.request`, `timeToLive` receives the request `Exit` and the request,
     * and `requireServicesAt` controls whether services are required at lookup time
     * or construction time.
     *
     * **Gotchas**
     *
     * Cache hits depend on the request value's equality semantics.
     *
     * @see {@link withCache} for keeping caching behind a resolver used with `Effect.request`
     * @see {@link persisted} for storing persistable request results outside process memory
     * @see {@link Cache.Cache} for operations available on the returned cache
     *
     * @stability stable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Any, ServiceMode extends "lookup" | "construction" = never>(options: {
        readonly capacity: number;
        readonly timeToLive?: ((exit: Request.Result<A>, request: A) => Duration.Input) | undefined;
        readonly requireServicesAt?: ServiceMode | undefined;
    }): (self: RequestResolver<A>) => Effect.Effect<Cache.Cache<A, Request.Success<A>, Request.Error<A>, "construction" extends ServiceMode ? never : Request.Services<A>>, never, "construction" extends ServiceMode ? Request.Services<A> : never>;
    /**
     * Wraps a request resolver in a cache, allowing it to cache results up to a
     * specified capacity and optional time-to-live.
     *
     * **When to use**
     *
     * Use to turn a request resolver into a first-class `Cache` when callers need
     * cache lookup, refresh, invalidation, or inspection around request results.
     *
     * **Details**
     *
     * The request value is the cache key. Cache misses run the resolver via
     * `Effect.request`, `timeToLive` receives the request `Exit` and the request,
     * and `requireServicesAt` controls whether services are required at lookup time
     * or construction time.
     *
     * **Gotchas**
     *
     * Cache hits depend on the request value's equality semantics.
     *
     * @see {@link withCache} for keeping caching behind a resolver used with `Effect.request`
     * @see {@link persisted} for storing persistable request results outside process memory
     * @see {@link Cache.Cache} for operations available on the returned cache
     *
     * @stability stable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Any, ServiceMode extends "lookup" | "construction" = never>(self: RequestResolver<A>, options: {
        readonly capacity: number;
        readonly timeToLive?: ((exit: Request.Result<A>, request: A) => Duration.Input) | undefined;
        readonly requireServicesAt?: ServiceMode | undefined;
    }): Effect.Effect<Cache.Cache<A, Request.Success<A>, Request.Error<A>, "construction" extends ServiceMode ? never : Request.Services<A>>, never, "construction" extends ServiceMode ? Request.Services<A> : never>;
};
/**
 * Adds a bounded in-memory cache to a request resolver.
 *
 * **When to use**
 *
 * Use to reuse completed results for repeated equal request values while still
 * passing a `RequestResolver` to `Effect.request`.
 *
 * **Details**
 *
 * Running the returned effect creates the cache and returns a wrapped resolver.
 * The cache stores completed success or failure results by request equality up
 * to `capacity`. The `strategy` option controls eviction order and defaults to
 * `"lru"`; `"fifo"` keeps insertion order.
 *
 * **Gotchas**
 *
 * Entries do not expire by time, and completed failures without interruptions
 * are cached the same as successes. Results containing interruptions are not
 * cached. Request equality controls cache hits.
 *
 * @see {@link asCache} for exposing the resolver as a `Cache` with time-to-live and service lookup controls
 * @see {@link persisted} for backing persistable requests with the configured persistence store
 *
 * @stability stable
 * @category caching
 * @since 4.0.0
 */
export declare const withCache: {
    /**
     * Adds a bounded in-memory cache to a request resolver.
     *
     * **When to use**
     *
     * Use to reuse completed results for repeated equal request values while still
     * passing a `RequestResolver` to `Effect.request`.
     *
     * **Details**
     *
     * Running the returned effect creates the cache and returns a wrapped resolver.
     * The cache stores completed success or failure results by request equality up
     * to `capacity`. The `strategy` option controls eviction order and defaults to
     * `"lru"`; `"fifo"` keeps insertion order.
     *
     * **Gotchas**
     *
     * Entries do not expire by time, and completed failures without interruptions
     * are cached the same as successes. Results containing interruptions are not
     * cached. Request equality controls cache hits.
     *
     * @see {@link asCache} for exposing the resolver as a `Cache` with time-to-live and service lookup controls
     * @see {@link persisted} for backing persistable requests with the configured persistence store
     *
     * @stability stable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Any>(options: {
        readonly capacity: number;
        readonly strategy?: "lru" | "fifo" | undefined;
    }): (self: RequestResolver<A>) => Effect.Effect<RequestResolver<A>>;
    /**
     * Adds a bounded in-memory cache to a request resolver.
     *
     * **When to use**
     *
     * Use to reuse completed results for repeated equal request values while still
     * passing a `RequestResolver` to `Effect.request`.
     *
     * **Details**
     *
     * Running the returned effect creates the cache and returns a wrapped resolver.
     * The cache stores completed success or failure results by request equality up
     * to `capacity`. The `strategy` option controls eviction order and defaults to
     * `"lru"`; `"fifo"` keeps insertion order.
     *
     * **Gotchas**
     *
     * Entries do not expire by time, and completed failures without interruptions
     * are cached the same as successes. Results containing interruptions are not
     * cached. Request equality controls cache hits.
     *
     * @see {@link asCache} for exposing the resolver as a `Cache` with time-to-live and service lookup controls
     * @see {@link persisted} for backing persistable requests with the configured persistence store
     *
     * @stability stable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Any>(self: RequestResolver<A>, options: {
        readonly capacity: number;
        readonly strategy?: "lru" | "fifo" | undefined;
    }): Effect.Effect<RequestResolver<A>>;
};
/**
 * Wraps a request resolver with persistent storage for persistable requests.
 *
 * **When to use**
 *
 * Use to keep a `RequestResolver` interface while reusing completed
 * `Persistable` request results through a `Persistence` store.
 *
 * **Details**
 *
 * Cached results are loaded from the configured persistence store before
 * running the underlying resolver. Missing entries are resolved normally and
 * written back to the store. Entries marked stale by `staleWhileRevalidate`
 * receive the stored result and are also resolved again so the refreshed result
 * can be written back to the store. Creating the persisted resolver requires
 * `Persistence.Persistence` and `Scope`.
 *
 * @see {@link withCache} for in-memory resolver caching that does not require persistable request values or a persistence store
 * @see {@link asCache} for exposing resolver results through a `Cache` instead of returning another resolver
 *
 * @stability unstable
 * @category caching
 * @since 4.0.0
 */
export declare const persisted: {
    /**
     * Wraps a request resolver with persistent storage for persistable requests.
     *
     * **When to use**
     *
     * Use to keep a `RequestResolver` interface while reusing completed
     * `Persistable` request results through a `Persistence` store.
     *
     * **Details**
     *
     * Cached results are loaded from the configured persistence store before
     * running the underlying resolver. Missing entries are resolved normally and
     * written back to the store. Entries marked stale by `staleWhileRevalidate`
     * receive the stored result and are also resolved again so the refreshed result
     * can be written back to the store. Creating the persisted resolver requires
     * `Persistence.Persistence` and `Scope`.
     *
     * @see {@link withCache} for in-memory resolver caching that does not require persistable request values or a persistence store
     * @see {@link asCache} for exposing resolver results through a `Cache` instead of returning another resolver
     *
     * @stability unstable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Request<any, Persistence.PersistenceError | Schema.SchemaError, any> & Persistable.Any>(options: {
        readonly storeId: string;
        readonly timeToLive?: ((exit: Request.Result<A>, request: A) => Duration.Input) | undefined;
        readonly staleWhileRevalidate?: ((exit: Request.Result<A>, request: A) => boolean) | undefined;
    }): (self: RequestResolver<A>) => Effect.Effect<RequestResolver<A>, never, Persistence.Persistence | Scope>;
    /**
     * Wraps a request resolver with persistent storage for persistable requests.
     *
     * **When to use**
     *
     * Use to keep a `RequestResolver` interface while reusing completed
     * `Persistable` request results through a `Persistence` store.
     *
     * **Details**
     *
     * Cached results are loaded from the configured persistence store before
     * running the underlying resolver. Missing entries are resolved normally and
     * written back to the store. Entries marked stale by `staleWhileRevalidate`
     * receive the stored result and are also resolved again so the refreshed result
     * can be written back to the store. Creating the persisted resolver requires
     * `Persistence.Persistence` and `Scope`.
     *
     * @see {@link withCache} for in-memory resolver caching that does not require persistable request values or a persistence store
     * @see {@link asCache} for exposing resolver results through a `Cache` instead of returning another resolver
     *
     * @stability unstable
     * @category caching
     * @since 4.0.0
     */
    <A extends Request.Request<any, Persistence.PersistenceError | Schema.SchemaError, any> & Persistable.Any>(self: RequestResolver<A>, options: {
        readonly storeId: string;
        readonly timeToLive?: ((exit: Request.Result<A>, request: A) => Duration.Input) | undefined;
        readonly staleWhileRevalidate?: ((exit: Request.Result<A>, request: A) => boolean) | undefined;
    }): Effect.Effect<RequestResolver<A>, never, Persistence.Persistence | Scope>;
};
export {};
//# sourceMappingURL=RequestResolver.d.ts.map