export declare type START = 0;
export declare type DATA = 1;
export declare type END = 2;
export declare type ALL = START | DATA | END;
export declare type Talkback = (type: END, payload?: any) => void;
export declare type Sink<T> = (type: ALL, payload?: Talkback | T | any) => void;
export declare type Producer<T> = (t: START, sink: Sink<T>) => void;
export declare type StrictSink<T> = {
    (t: START, d: Talkback): void;
    (t: DATA, d: T): void;
    (t: END, d?: unknown): void;
    (t: ALL, d?: unknown): void;
};
export declare type Subject<T> = {
    (t: START, d: StrictSink<T>): void;
    (t: DATA, d: T): void;
    (t: END, d?: unknown): void;
};
export declare type Dispose = () => void;
export declare type Consumer<T> = (source: Producer<T>) => Dispose;
export declare type Operator<A, B> = (source: Producer<A>) => Producer<B>;
export declare type ExtractContent<T extends [...Producer<any>[]]> = {
    [k in keyof T]: T[k] extends Producer<infer U> ? U : never;
};