import { ServiceIdentifier } from "./instantiation.js";
import { SyncDescriptor } from "./descriptors.js";
export declare class ServiceCollection {
    private _entries;
    constructor(...entries: [
        ServiceIdentifier<any>,
        any
    ][]);
    set<T>(id: ServiceIdentifier<T>, instanceOrDescriptor: T | SyncDescriptor<T>): T | SyncDescriptor<T>;
    has(id: ServiceIdentifier<any>): boolean;
    get<T>(id: ServiceIdentifier<T>): T | SyncDescriptor<T>;
}