import { Self } from "./mod";
import { Option } from "./option";
import { Result } from "./result";
export declare class SenderError {
    error: string;
    constructor(self: Self<SenderError>);
}
export declare class ReceiverError {
    error: string;
    constructor(self: Self<ReceiverError>);
}
export declare class SyncSender<T> {
    messages: T[];
    constructor(self: Self<SyncSender<T>>);
    send(value: T): Result<{}, SenderError>;
}
export declare class SyncReceiver<T> {
    messages: T[];
    constructor(self: Self<SyncReceiver<T>>);
    recv(): Option<T>;
}
export declare function syncChannel<T>(): [SyncSender<T>, SyncReceiver<T>];
export declare class Sender<T> {
    sender: SyncSender<Promise<T>>;
    constructor(self: Self<Sender<T>>);
    send(task: Promise<T>): void;
}
export declare class Receiver<T> {
    task: Promise<Result<T, ReceiverError>>;
    receiver: SyncReceiver<Promise<T>>;
    constructor(self: Self<Receiver<T>>);
    recv<E = ReceiverError>(): Promise<Result<T, E>>;
}
export declare function channel<T>(): [Sender<T>, Receiver<T>];