message: Include ts files in babel builds
diff: ],
  "scripts": {
  "build": "npm run build-lib && npm run build-types",
  - "build-lib": "babel src -d lib --source-maps",
  + "build-lib": "babel src -d lib --source-maps --extensions '.ts,.js'",
  "build-types": "tsc --emitDeclarationOnly",
  "postversion": "git push origin master --follow-tags",
  "prepublishOnly": "npm run build",
  "standard": "standard src",
  "test": "npm run standard",
  - "watch": "babel src --out-dir lib --watch --source-maps"
  + "watch": "babel src --out-dir lib --watch --source-maps --extensions '.ts,.js'"
  },
  "repository": {
  "type": "git",
  