import { Message } from '@statechannels/client-api-schema';
/**
 * This is the handler that any messaging service implementation should call when receiving a message
 * The handler is responsible for pushing the message into the appropriate wallet
 */
export declare type MessageHandler = (message: Message) => Promise<void>;
/**
 * A MessageServiceFactory is responsible for generating a MessageService.
 * This is used by the Wallet to construct the messaging service that will be used.
 * The incomingMessageHandler will be supplied by the Wallet to handle messages.
 */
export declare type MessageServiceFactory = (incomingMessageHandler: MessageHandler) => MessageServiceInterface;
export interface MessageServiceInterface {
    /**
     * Sends out the messages to the specified by participants.
     * @param messages The collection of messages to send
     */
    send(message: Message[]): Promise<void>;
    /**
     * Registers a peer so messages can be sent to that peer
     * @param peerUrl The url for the peer
     */
    registerPeer(peerUrl: string): Promise<void>;
    /**
     * This is called when the message service is no longer needed
     */
    destroy(): Promise<void>;
}
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