tsconfig.json

{
    "compilerOptions": {
        "allowSyntheticDefaultImports": true,
        "baseUrl": "./packages",
        "declaration": true,
        "emitDeclarationOnly": true,
        "experimentalDecorators": true,
        "importHelpers": true,
        "inlineSources": true,
        "isolatedModules": true,
        "lib": ["es2018", "dom", "dom.iterable"],
        "module": "esNext",
        "moduleResolution": "node",
        "noImplicitOverride": true,
        "noImplicitReturns": true,
        "noUnusedParameters": true,
        "noUnusedLocals": true,
        "rootDir": ".",
        "skipLibCheck": true,
        "strict": true,
        "sourceMap": true,
        "target": "es2018",
        "types": ["mocha", "chai", "sinon", "node", "swc"]
    },
    "include": ["./global.d.ts"]
}