/**
 * An adapter is an IPC primitive that allows to send and receive messages.
 */
type Adapter<TMessage = unknown> = {
    /**
     * Publish a message.
     */
    publish: (message: TMessage) => void;
    /**
     * Subscribe to messages.
     */
    subscribe: (callback: (message: TMessage) => void) => void;
    /**
     * Unsubscribe from messages.
     */
    unsubscribe: (callback: (message: TMessage) => void) => void;
};
/**
 * A helper function that allows to define adapter in a more convenient way.
 */
declare function defineAdapter<TMessage>(adapter: Adapter<TMessage>): Adapter<TMessage>;

export { type Adapter as A, defineAdapter as d };