tibi-types/tsconfig.json

{
    "include": ["demo-api/**/*"],
    "compilerOptions": {
        "typeRoots": ["."],
        "module": "commonjs",
        "noImplicitAny": true,
        "noImplicitThis": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "types": [],
        "noEmit": true,
        "forceConsistentCasingInFileNames": true,

        "allowJs": true,
        "checkJs": true
    },
    "files": ["index.d.ts"]
}