import { Constructor } from "../../typing";
/**
 * Options for the `Injectable` decorator.
 */
interface InjectableOptions {
    /**
     * Determines where the dependency is provided.
     */
    providedIn?: "root";
}
/**
 * Decorator that marks a class providable as a dependency.
 *
 * Use the `providedIn` option to provide the dependency in the root injector.
 *
 * @example Mark `MyService` as a dependency in a component.
 * ```ts
 * @Injectable()
 * class MyService {
 *    doSomething() {
 *      console.log("Hello World!");
 *    }
 * }
 *
 * @MnComponent({
 *    scope: {
 *       pageType: "record"
 *    },
 *    providers: [
 *       MyService
 *    ]
 * })
 * export class MyComponent {
 *   constructor(myService: MyService) {
 *     myService.doSomething();
 *   }
 * }
 * ```
 *
 * @example Mark `MyService` as a dependency and provide it in the root injector.
 * ```ts
 * @Injectable({
 *    providedIn: "root"
 * })
 * class MyService {
 *    doSomething() {
 *       console.log("Hello World!");
 *    }
 * }
 *
 * @MnComponent({
 *    scope: {
 *       pageType: "record"
 *    }
 * })
 * export class MyComponent {
 *    constructor(myService: MyService) {
 *       myService.doSomething();
 *    }
 * }
 * ```
 *
 * @category Dependency Injection
 */
export declare function Injectable<T extends Constructor>(options?: InjectableOptions): (target: T) => void;
export {};