text: Title: Bfetch plugin is has two types that need to be exported bc they are being used in the public API
  Body: Run `node scripts/build_api_docs.js --plugin bfetch --stats exports` to see a list of all types that need to be exported.
  
  ```
  info 2 referenced API items not exported
  ┌─────────┬────────────────────────────────────────────────┬──────────────────────────────────────────────────────────┐
  │ (index) │              Not exported source               │                        references                        │
  ├─────────┼────────────────────────────────────────────────┼──────────────────────────────────────────────────────────┤
  │    0    │      'bfetch-public-FetchStreamingParams'      │ 'bfetch-def-public.BfetchPublicContract.fetchStreaming'  │
  │    1    │ 'bfetch-public-StreamingBatchedFunctionParams' │ 'bfetch-def-public.BfetchPublicContract.batchedFunction' │
  └─────────┴────────────────────────────────────────────────┴──────────────────────────────────────────────────────────┘
  ```
  
  Without exporting these types, they won't show up in our API documentation:
  
  <img width="789" alt="Screen Shot 2021-05-06 at 4 11 27 PM" src="https://user-images.githubusercontent.com/16563603/117359701-c2fa5080-ae85-11eb-833d-243bdfcc0848.png">
  