import { MessageType } from './message-type';
/**
 * BroadcastMessage represents a message that can be broadcasted to all browser contexts.
 * No methods should be added here, since the broadcast API uses structured cloning to transfer messages,
 * which removes any methods from the message.
 */
export declare class BroadcastMessage {
    readonly type: MessageType;
    readonly params?: unknown;
    constructor(type: MessageType, params?: unknown);
}