/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.dev/license
 */
import type { Injector } from './injector';
/**
 * Runs the given function in the [context](guide/di/dependency-injection-context) of the given
 * `Injector`.
 *
 * Within the function's stack frame, [`inject`](api/core/inject) can be used to inject dependencies
 * from the given `Injector`. Note that `inject` is only usable synchronously, and cannot be used in
 * any asynchronous callbacks or after any `await` points.
 *
 * @see [Run within an injection context](guide/di/dependency-injection-context#run-within-an-injection-context)
 *
 * @param injector the injector which will satisfy calls to [`inject`](api/core/inject) while `fn`
 *     is executing
 * @param fn the closure to be run in the context of `injector`
 * @returns the return value of the function, if any
 * @publicApi
 */
export declare function runInInjectionContext<ReturnT>(injector: Injector, fn: () => ReturnT): ReturnT;
/**
 * Whether the current stack frame is inside an injection context.
 */
export declare function isInInjectionContext(): boolean;
/**
 * Asserts that the current stack frame is within an [injection
 * context](guide/di/dependency-injection-context) and has access to `inject`.
 *
 * @param debugFn a reference to the function making the assertion (used for the error message).
 *
 * @see [Asserts the context](guide/di/dependency-injection-context#asserts-the-context)
 *
 * @publicApi
 */
export declare function assertInInjectionContext(debugFn: Function): void;