import { IObserver } from './Observer';
export declare type Constructor<T = {}> = new (...t: any[]) => T;
export declare class Virgin {
}
export declare const ErrorMixin: <TBase extends Constructor<{}>>(Base: TBase) => {
    new (...t: any[]): {
        readonly sink: IObserver<any>;
        error(error: Error): void;
    };
} & TBase;
export declare const CompleteMixin: <TBase extends Constructor<{}>>(Base: TBase) => {
    new (...t: any[]): {
        readonly sink: IObserver<any>;
        complete(): void;
    };
} & TBase;
export declare const NextMixin: <TBase extends Constructor<{}>>(Base: TBase) => {
    new (...t: any[]): {
        readonly sink: IObserver<any>;
        next(value: any): void;
    };
} & TBase;