message: Clean up ReadableWritableStreamPair
diff: }
  },
  "ReadableWritableStreamPair": {
  - "name": "ReadableWritableStreamPair<R extends ReadableStream, W extends WritableStream>",
  + "name": "ReadableWritableStreamPair",
  + "type-parameters": [
  + {
  + "name": "R",
  + "extends": "ReadableStream"
  + },
  + {
  + "name": "W",
  + "extends": "WritableStream"
  + }
  + ],
  "override-exposed": "Window Worker",
  "properties": {
  "property": {
  