declare const coherentpdf: typeof import('../../src/types/coherentpdf.global').coherentpdf; interface ExtractAttachmentsMessage { command: 'extract-attachments'; fileBuffers: ArrayBuffer[]; fileNames: string[]; cpdfUrl?: string; } interface ExtractAttachmentSuccessResponse { status: 'success'; attachments: Array<{ name: string; data: ArrayBuffer }>; } interface ExtractAttachmentErrorResponse { status: 'error'; message: string; } type ExtractAttachmentResponse = | ExtractAttachmentSuccessResponse | ExtractAttachmentErrorResponse;