import type { Attachment } from '@doist/twist-sdk';
/**
 * Upload one or more local files and return the created {@link Attachment}s,
 * ready to splice into the `attachments` array of `comments.createComment`,
 * `conversationMessages.createMessage`, or `threads.createThread`.
 *
 * All paths are validated (existence + readability) up front, before any
 * upload starts, so a bad path fails fast without leaving a partial set of
 * uploaded-but-unreferenced attachments behind. Uploads then run concurrently
 * while the returned array preserves the input order.
 */
export declare function uploadAttachments(files: string[]): Promise<Attachment[]>;
export type { Attachment };
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