How to use the @nrwl/schematics.insert function in @nrwl/schematics

return (host: Tree) => {
    const modulePath = `${path}/app/app.module.ts`;
    const moduleSource = host.read(modulePath)!.toString('utf-8');
    const sourceFile = ts.createSourceFile(modulePath, moduleSource, ts.ScriptTarget.Latest, true);
    const importChanges = addImportToModule(sourceFile, modulePath, 'BrowserModule', '@angular/platform-browser');
    const bootstrapChanges = addBootstrapToModule(sourceFile, modulePath, 'AppComponent', './app.component');
    insert(host, modulePath, [...importChanges, ...bootstrapChanges]);
    return host;
  };
}