{
  "extends": "../tsconfig.base.json",
  "include": ["src/**/*", "types/**/*"],
  "exclude": ["node_modules", "website/node_modules"],
  "compilerOptions": {
    "baseUrl": ".",
    "noEmit": true,
    "paths": {
      "bemuse/*": ["./src/*"]
    }
  }
}

{
  "extends": "../tsconfig.base.json",
  "include": ["src/**/*", "types/**/*"],
  "exclude": ["node_modules", "website/node_modules"],
  "compilerOptions": {
    "baseUrl": ".",
    "noEmit": true,
    "paths": {
      "bemuse/*": ["./src/*"]
    },
    "target": "ES2019"
  }
}

Set compilation target to ES2019
Set compilation target to ES2019
