setup-cpp/tsconfig.types.json

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "emitDeclarationOnly": true,
    "noEmit": false,
    "declarationDir": "./dist/library",
    "rootDir": "./src",
    "incremental": false
  },
  "include": [
    "./src/**/*.ts"
  ],
  "exclude": [
    "./src/**/*.test.ts"
  ]
}