import { Media, Message, MessageType } from './message-protocol';
export declare abstract class AbstractMessage implements Message {
    readonly messageType: MessageType;
    readonly content: string;
    readonly media: Media[];
    readonly metadata: Record<string, any>;
    static MESSAGE_TYPE: string;
    constructor(messageType: MessageType, content: string, media?: Media[], metadata?: Record<string, any>);
}
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