import type { IoMessage, IoRequest } from './io-message';
export interface IIoHost {
    /**
     * Notifies the host of a message.
     * The caller waits until the notification completes.
     */
    notify(msg: IoMessage<unknown>): Promise<void>;
    /**
     * Notifies the host of a message that requires a response.
     *
     * If the host does not return a response the suggested
     * default response from the input message will be used.
     */
    requestResponse<T>(msg: IoRequest<unknown, T>): Promise<T>;
}
export interface IActionAwareIoHost {
    /**
     * Notifies the host of a message.
     * The caller waits until the notification completes.
     */
    notify(msg: Omit<IoMessage<unknown>, 'action'>): Promise<void>;
    /**
     * Notifies the host of a message that requires a response.
     *
     * If the host does not return a response the suggested
     * default response from the input message will be used.
     */
    requestResponse<T>(msg: Omit<IoRequest<unknown, T>, 'action'>): Promise<T>;
}
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