text: Title: Remove `any` from data plugin's public API
  Body: `any` type is always a bad idea, but particularly in a public API item, and even _more_ so if there are no comments.
  
  <img width="658" alt="Screen Shot 2021-05-06 at 2 11 28 PM" src="https://user-images.githubusercontent.com/16563603/117345864-0dbf9c80-ae75-11eb-9b9b-954faa4256af.png">
  
  Data plugin has quite a few
  
  <img width="1028" alt="Screen Shot 2021-05-06 at 2 14 29 PM" src="https://user-images.githubusercontent.com/16563603/117346621-faf99780-ae75-11eb-935a-9be9ba80d2ec.png">
  
  Run `node scripts/build_api_docs --stats any --plugin data` to get a list of every specific API item:
  
  <img width="1646" alt="Screen Shot 2021-05-06 at 2 19 02 PM" src="https://user-images.githubusercontent.com/16563603/117346648-06e55980-ae76-11eb-88a7-f8fdc200e96e.png">
  
  