import type { ImageAttachmentReference, StoredImageAttachment } from '../types/image-attachments.js';
export declare function isImageAttachmentPlaceholder(value: string): boolean;
export declare function validateImageAttachmentFileName(fileName: string): void;
export declare function validateStoredImageAttachment(attachment: StoredImageAttachment): void;
export declare function assertRegularImageAttachmentFile(filePath: string, subject?: string): void;
export declare function resolveReferencedImageAttachments(prompt: string, attachments: readonly StoredImageAttachment[]): ImageAttachmentReference[];
//# sourceMappingURL=imageAttachmentReferences.d.ts.map