import { IMessage } from '../message';
export interface IHandleMessage<M extends IMessage> {
    handle({ message }: CallbackOptions<M>): void;
}
export interface MessageSubscription {
    unsubscribe(): any;
}
export interface IMessageHandlerContext {
    publish<V extends IMessage = IMessage>(message: V): void;
}
export interface CallbackOptions<T extends IMessage> {
    message: T;
    context: IMessageHandlerContext;
}
export declare abstract class Logger {
    abstract error(message?: any, ...optionalParams: any[]): void;
    abstract log(message?: any, ...optionalParams: any[]): void;
    abstract warn(message?: any, ...optionalParams: any[]): void;
}
export interface PubsubSubscription {
    unsubscribe(): void;
}