How to use the @angular-devkit/architect/testing.TestLogger function in @angular-devkit/architect

tmpDir = mkdtempSync(join(tmpdir(), 'ngssc-'));
    writeFileSync(join(tmpDir, 'environment.prod.ts'), envContent, 'utf8');
    distDir = join(tmpDir, 'dist');
    mkdirSync(distDir);
    writeFileSync(join(distDir, 'main.js'), '', 'utf8');
    architectHost = new TestingArchitectHost(tmpDir, tmpDir);
    architect = new Architect(architectHost, registry);

    // This will either take a Node package name, or a path to the directory
    // for the package.json file.
    await architectHost.addBuilderFromPackage('../../../..');
    await architectHost.addBuilderFromPackage('..');

    // Create a logger that keeps an array of all messages that were logged.
    logger = new TestLogger('ngssc');
  });

builder: any = {};
  analytics = null;

  target: Target = {
    project: null,
    target: null
  };

  get currentDirectory() {
    return this.architectHost.currentDirectory;
  }
  get workspaceRoot() {
    return this.architectHost.workspaceRoot;
  }
  logger = new TestLogger('test');
  constructor(
    private architect: Architect,
    private architectHost: TestingArchitectHost
  ) {}

  async addBuilderFromPackage(path: string) {
    return await this.architectHost.addBuilderFromPackage(path);
  }

  async addTarget(target: Target, builderName: string) {
    return await this.architectHost.addTarget(target, builderName);
  }

  getBuilderNameForTarget(target: Target) {
    return this.architectHost.getBuilderNameForTarget(target);
  }