remix-project/libs/remix-astwalker/tsconfig.json

{
  "include": ["src"],
  "exclude":  ["node_modules", "src/@types" ],
  "compilerOptions": {
    /* Basic Options */
    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": ["dom", "es2018"],                 /* Specify library files to be included in the compilation. */
    "declaration": true,                      /* Generates corresponding '.d.ts' file. */
    "sourceMap": true,                        /* Generates corresponding '.map' file. */
    "outDir": "./dist",                       /* Redirect output structure to the directory. */

    /* Strict Type-Checking Options */
    "strict": true,                           /* Enable all strict type-checking options. */
    "noImplicitAny": false,                   /* Raise error on expressions and declarations with an implied 'any' type. */

    /* Module Resolution Options */
    "baseUrl": "./src",                       /* Base directory to resolve non-absolute module names. */
    "paths": { "remix-tests": ["./"] },       /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    "typeRoots": ["./@types", "node_modules/@types"], /* List of folders to include type definitions from. */
    "esModuleInterop": true,                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    "types": [
      "node"
    ],
    /* Experimental Options */
    "experimentalDecorators": true,           /* Enables experimental support for ES7 decorators. */
    "allowSyntheticDefaultImports": true,
    // Disables strictNullChecks
    "strictNullChecks": false
  }
}