import type { ChatAttachment, ResolveChatAttachmentOptions } from '../chatAttachments';
/**
 * Appends attachment metadata and inline attachment content to message content.
 *
 * The helper never throws because attachment downloads are best-effort and should
 * not block chat requests.
 *
 * @param {string} messageContent - The original message content.
 * @param {ReadonlyArray<ChatAttachment>} attachments - The attachments to append.
 * @param {ResolveChatAttachmentOptions} options - Options for resolution.
 * @returns {Promise<string>} The updated message content.
 * @public exported from `@promptbook/core`
 */
export declare function appendChatAttachmentContextWithContent(messageContent: string, attachments: ReadonlyArray<ChatAttachment>, options?: ResolveChatAttachmentOptions): Promise<string>;
