tsconfig.json

{
    "compilerOptions": {
      "target": "es2019",
      "module": "ESNext",
      "lib": ["es2020", "DOM", "DOM.Iterable"],
      "declaration": true,
      "declarationMap": true,
      "sourceMap": true,
      "inlineSources": true,
      "rootDir": ".",
      "noUnusedLocals": true,
      "useDefineForClassFields": false,
      "noUnusedParameters": true,
      "noImplicitReturns": true,
      "noFallthroughCasesInSwitch": true,
      "moduleResolution": "node",
      "allowSyntheticDefaultImports": true,
      "experimentalDecorators": true,
      "resolveJsonModule": true,
      "forceConsistentCasingInFileNames": true,
      "noImplicitOverride": true,
      "noImplicitThis": true,
      "noEmitOnError": true,
      "noImplicitAny": true,
      "plugins": [
        {
          "name": "ts-lit-plugin",
          "strict": true,
          "rules" : {
            "no-missing-element-type-definition": "error",
            "no-unknown-event": "error"
          },
          "globalEvents": [
            "toggle",
            "dialog-should-close",
            "undo-clicked",
            "option-changed",
            "run-clicked",
            "path-toggled",
            "open-dialog"
          ]
        }
      ]
    },
    "include": ["src/**/*.ts", "tools/**/*.ts"]
  }