Vercel AI SDK 支持哪些文件上传和处理能力？

import { readFile } from 'node:fs/promises';
import { openai } from '@ai-sdk/openai';
import { uploadFile } from 'ai';

const { providerReference } = await uploadFile({
  api: openai.files(),
  data: await readFile('./document.pdf'),
  filename: 'document.pdf',
});