tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "lib": ["es5", "es6", "dom"],
    "module": "commonjs",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": true,
    "pretty": true,
    "allowUnreachableCode": true,
    "allowUnusedLabels": true,
    "noImplicitAny": false,
    "noImplicitReturns": false,
    "noImplicitUseStrict": false,
    "allowSyntheticDefaultImports": true,
    "suppressExcessPropertyErrors": true,
    "suppressImplicitAnyIndexErrors": true,
    "skipDefaultLibCheck": true,
    "noEmitHelpers": false,
    "isolatedModules": false,
    "strictNullChecks": false,
    "outDir": "dist",
    "baseUrl": "src",
    "paths": {
      "@ngui/collapsable": ["./index"]
    }
  },
  "files": [
    "src/index.ts"
  ],
  "exclude": [
    "node_modules"
  ],
  "compileOnSave": false,
  "buildOnSave": false,
  "angularCompilerOptions": {
    "strictMetadataEmit": true,
    "skipTemplateCodegen": true
  }
}