export declare function createExplorerMessenger(): ExplorerMessenger;

/**
 * The `EventProtocolEvent` object defines the valid format of an event to be emitted to the Event API.
 */
export declare interface EventProtocolEvent extends Payload {
    /**
     * Readonly `Meta` object.
     */
    meta: Readonly<Meta>;
}

/**
 * the `EventProtocolMessage` object provides a structured representation of a message to be emitted for the event protocol's validation.
 */
export declare interface EventProtocolMessage {
    /**
     * Kind of message, always set to `EVENT_PROTOCOL`.
     */
    kind: "EVENT_PROTOCOL";
    /**
     * Message's structured event.
     */
    event: EventProtocolEvent;
    /**
     * Endpoint defined to communicate with the Event API.
     */
    url: string;
    /**
     * Token to authorize the access to the Event API's validation endpoint.
     */
    token: string;
}

export declare type ExplorerMessage = EventProtocolMessage;

declare interface ExplorerMessenger {
    /**
     * Sends an explorer message between window objects.
     * @param {ExplorerMessage} message - message to be sent.
     * @returns {void}
     */
    sendMessage: (message: ExplorerMessage) => void;
}

/**
 * The `Meta` object provides a structured representation of metadata associated with an emitted event.
 */
declare interface Meta {
    /**
     * The type of event.
     */
    type: string;
}

declare type Payload = Record<string, any>;

export { }