/**
 * MHub pubsub fabric: nodes and bindings.
 * Provides the basic routing infrastructure to send and receive messages.
 */
import Hub from "./hub";
import { MatchSpec } from "./match";
import Message from "./message";
export interface Initializable {
    init?(hub: Hub): Promise<void>;
}
export interface Destination extends Initializable {
    name: string;
    send(message: Message): void;
}
export interface Source extends Initializable {
    name: string;
    bind(destination: Destination, pattern?: MatchSpec): void;
    unbind(destination: Destination, pattern?: MatchSpec): void;
}
export declare function isDestination(node: BaseNode | undefined): node is Destination;
export declare function isSource(node: BaseNode | undefined): node is Source;
export declare type BaseNode = Source | Destination;
export declare class BaseSource implements Source {
    name: string;
    private _bindings;
    constructor(name: string);
    bind(destination: Destination, pattern?: MatchSpec): void;
    unbind(destination: Destination, pattern?: MatchSpec): void;
    protected _broadcast(message: Message): void;
}