Convert PDF, Office (DOCX, PPTX), spreadsheets (XLSX in Flash mode), images, and http(s) URLs to Markdown using the MinerU cloud API (content is uploaded to mineru.net; do not use for data that must stay on-device). Does not modify source files; may write Markdown under output_dir when saving results. Auth: without MINERU_API_TOKEN, Flash mode applies (Markdown-only, about 20 pages and 10 MB per file; service rate limits). With MINERU_API_TOKEN, higher limits and optional formats per plan. Use for extraction and conversion. Use get_ocr_languages only to list OCR language codes, not to parse files. Not for fully offline parsing. Parameters: file_sources is paths/URLs or objects with source and pages for PDF ranges; language is an OCR code (default ch); enable_ocr defaults to auto (null); set model to html only if every source is a web page URL.

Return supported MinerU OCR and script language codes (e.g. ch, en, japan, latin). Read-only; no uploads. Use before setting the language argument on parse_documents for scanned or multilingual documents. Do not use for file conversion; call parse_documents instead.