/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import { GraphQLResponse } from '../network/RelayNetworkTypes';
import { RelayObservable as Observable } from '../network/RelayObservable';
import {Environment, OperationDescriptor, RequestDescriptor} from '../store/RelayStoreTypes';
import { RequestIdentifier } from '../util/getRequestIdentifier';

export function fetchQuery(environment: Environment, operation: OperationDescriptor): Observable<GraphQLResponse>;

export function fetchQueryDeduped(
    environment: Environment,
    identifier: RequestIdentifier,
    fetchFn: () => Observable<GraphQLResponse>,
): Observable<GraphQLResponse>;

export function getPromiseForActiveRequest(environment: Environment, request: RequestDescriptor): Promise<void> | null;

export function getObservableForActiveRequest(
    environment: Environment,
    request: RequestDescriptor,
): Observable<void> | null;