import { TaggedServiceFactoryReference } from './TaggedServiceFactoryReference';
import { BaseServiceFactoryReference } from './BaseServiceFactoryReference';
/**
 * For internal service function reference.
 *
 * @example
 *    const example: FF = ({reference}) => {
 *        const myService = reference(() => 'foo string service');
 *        return {
 *          first: myService,
 *          second: myService,
 *        };
 *    };
 *
 *    // First and second are proxies of the internal service.
 *    // Reference function is an example, many internal function are pre wrapped as a
 *    // reference.
 */
export declare class InternalServiceFactoryReference extends BaseServiceFactoryReference {
    readonly type = "internal";
    private proxies;
    /**
     * i = The internal dependency
     * s = The actual service
     * p = The dependency in the middle
     *
     * a -> i -> s
     * b -> i -> s
     *
     * a -> i -> p -> s
     * b -> i -> p -> s
     */
    addReferenceProxy(proxy: TaggedServiceFactoryReference): void;
    getReferenceProxies(): TaggedServiceFactoryReference[];
    label(): string;
}