import { MessageSerializer, SerializedMessage } from '../interfaces';
/**
 * Default JSON message serializer.
 * Serializes messages to JSON format using JSON.stringify.
 */
export declare class JsonMessageSerializer<T = any> implements MessageSerializer<T> {
    /**
     * Serialize a message object to JSON format.
     *
     * @param message - The message object to serialize
     * @returns Promise resolving to serialized message with JSON body
     * @throws SerializationError if JSON serialization fails
     */
    serialize(message: T): Promise<SerializedMessage>;
    /**
     * Get the content type for JSON serialization.
     *
     * @returns 'application/json'
     */
    getContentType(): string;
}
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