How to use the generator-jhipster/generators/generator-constants.ANGULAR_DIR function in generator-jhipster

setUpVariables() {
                // Ok
                this.webappDir = jhipsterConstants.CLIENT_MAIN_SRC_DIR;
                this.angularDir = jhipsterConstants.ANGULAR_DIR;
                this.reactDir = jhipsterConstants.REACT_DIR;
                this.CLIENT_TEST_SRC_DIR = jhipsterConstants.CLIENT_TEST_SRC_DIR;

                // template variables
                mtUtils.tenantVariables(this.config.get('tenantName'), this);
            },
            writeAdditionalFile() {

const mkdirp = require('mkdirp');
const constants = require('generator-jhipster/generators/generator-constants');

/* Constants use throughout */
const MAIN_SRC_DIR = constants.CLIENT_MAIN_SRC_DIR;
// const TEST_SRC_DIR = constants.CLIENT_TEST_SRC_DIR;
const REACT_DIR = constants.ANGULAR_DIR;

/**
 * The default is to use a file path string. It implies use of the template method.
 * For any other config an object { file:.., method:.., template:.. } can be used
*/
const files = {
  common: [
    {
      templates: [
        '_package.json',
        '_.eslintrc.json',
        '_.babelrc',
        '_.editorconfig',
        'webpack/webpack.common.js',
        'webpack/webpack.dev.js',
        'webpack/webpack.prod.js'

*
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const mkdirp = require('mkdirp');
const constants = require('generator-jhipster/generators/generator-constants');
const utils = require('../utils');

const MAIN_SRC_DIR = constants.CLIENT_MAIN_SRC_DIR;
const TEST_SRC_DIR = constants.CLIENT_TEST_SRC_DIR;
const VUE_DIR = constants.ANGULAR_DIR;
const CLIENT_VUE_TEMPLATES_DIR = 'vue';

module.exports = {
    writeFiles
};

const vueFiles = {
    common: [
        {
            templates: [
                'package.json',
                'tsconfig.json',
                '.huskyrc',
                '.postcssrc.js',
                'tslint.json',
                'config/index.js',

cleanup() {
                const context = this.context;
                const entityName = context.name;
                if (this.isJhipsterVersionLessThan('5.0.0')) {
                    this.removeFile(`${jhipsterConstants.ANGULAR_DIR}entities/${entityName}/${entityName}.model.ts`);
                }
            },