node_modules/rxjs/src/webSocket/package.json

{
  "es2015": "../_esm2015/webSocket/index.js", 
  "main": "./index.js", 
  "module": "../_esm5/webSocket/index.js", 
  "name": "rxjs/webSocket", 
  "sideEffects": false, 
  "typings": "./index.d.ts"
}