tsconfig.json

{
    "compilerOptions": {
        "target": "es2018",
        "module": "commonJS",
        "allowSyntheticDefaultImports": false,
        "esModuleInterop": false,
        "alwaysStrict": true,
        "moduleResolution": "node",
        "strict": true,
        "noFallthroughCasesInSwitch": true,
        "newLine": "LF",
        "strictNullChecks": true,
        "resolveJsonModule": true,
        "lib": [
            "dom",
            "es2020.string",
            "es2020.promise",
            "es2019.array",
            "es2018.asynciterable",
            "dom.iterable"
        ],
        "rootDir": "./src",
        "noImplicitAny": true
    },
    "include": [
        "./augment.d.ts",
        "./src/*.ts"
    ]
}