How to use the just-scripts.series function in just-scripts

const dir = path.dirname(filePath);
  if (!fs.existsSync(dir)) {
    ensureDirectoryExists(dir);
    fs.mkdirSync(dir);
  }
}

task('prepareBundle', () => {
  ensureDirectoryExists(
    path.resolve(__dirname, 'dist/win32/dev/index.win32.bundle'),
  );
});

task(
  'build',
  series(
    condition('clean', () => argv().clean),
    'eslint',
    'initRNLibraries',
    'copyFlowFiles',
    'copyPngFiles',
    // native-bundle:filtered
    // trickle
    // react-test
    'ts',
    condition('apiExtractorVerify', () => argv().ci),
    'apiExtractorUpdate',
    'apiDocumenter',
  ),
);

...(argv().production && {
      inlineSources: true,
    }),
    target: 'es6',
    module: 'commonjs',
  });
});

task('prepareBundle', () => {
  const file = 'windows/ReactUWPTestApp/Bundle';
  if (!fs.existsSync(file)) {
    fs.mkdirSync(file);
  }
});

task('build', series('eslint', 'ts'));

return eslintTask();
});
task('ts', () => {
  return tscTask({
    pretty: true,
    noEmit: true,
    ...(argv().production && {
      inlineSources: true,
      sourceRoot: path.relative(libPath, srcPath),
    }),
    target: 'es6',
    module: 'commonjs',
  });
});

task('build', series('eslint', 'ts'));

task('update-api-extractor', updateApiExtractor);
  task('lint-imports', lintImports);
  task('prettier', prettier);
  task('bundle-size-collect', bundleSizeCollect);
  task('check-for-modified-files', checkForModifiedFiles);
  task('generate-version-files', generateVersionFiles);
  task('generate-package-manifest', generatePackageManifestTask);
  task('ts', () => {
    return argv().commonjs
      ? 'ts:commonjs-only'
      : parallel('ts:commonjs', 'ts:esm', condition('ts:amd', () => argv().production && !argv().min));
  });

  task('validate', fs.existsSync(path.join(process.cwd(), 'jest.config.js')) ? series('tslint', 'jest') : 'tslint');
  task('code-style', series('prettier', 'tslint'));
  task('update-api', series('clean', 'copy', 'sass', 'ts', 'update-api-extractor'));
  task('dev', series('clean', 'copy', 'sass', 'webpack-dev-server'));

  task('build:node-lib', series('clean', 'copy', series(condition('validate', () => !argv().min), 'ts:commonjs-only'))).cached();

  task(
    'build',
    series(
      'clean',
      'copy',
      'sass',
      parallel(
        condition('validate', () => !argv().min),
        series(
          'ts',
          parallel(
            condition('webpack', () => !argv().min && !!resolveCwd('webpack.config.js')),

module.exports = function preset() {
  basicPreset();

  task('clean', clean);
  task('copy', copy);
  task('jest', jest);
  task('jest-watch', jestWatch);
  task('sass', sass);
  task('postprocess:amd', postprocessAmdTask);
  task('postprocess:commonjs', postprocessCommonjsTask);
  task('ts:commonjs', ts.commonjs);
  task('ts:esm', ts.esm);
  task('ts:amd', series(ts.amd, 'postprocess:amd'));
  task('tslint', tslint);
  task('ts:commonjs-only', ts.commonjsOnly);
  task('webpack', webpack);
  task('webpack-dev-server', webpackDevServer);
  task('verify-api-extractor', verifyApiExtractor);
  task('update-api-extractor', updateApiExtractor);
  task('lint-imports', lintImports);
  task('prettier', prettier);
  task('bundle-size-collect', bundleSizeCollect);
  task('check-for-modified-files', checkForModifiedFiles);
  task('generate-version-files', generateVersionFiles);
  task('generate-package-manifest', generatePackageManifestTask);
  task('ts', () => {
    return argv().commonjs
      ? 'ts:commonjs-only'
      : parallel('ts:commonjs', 'ts:esm', condition('ts:amd', () => argv().production && !argv().min));

task('ts', () => {
    return argv().commonjs
      ? 'ts:commonjs-only'
      : parallel('ts:commonjs', 'ts:esm', condition('ts:amd', () => argv().production && !argv().min));
  });

  task('validate', fs.existsSync(path.join(process.cwd(), 'jest.config.js')) ? series('tslint', 'jest') : 'tslint');
  task('code-style', series('prettier', 'tslint'));
  task('update-api', series('clean', 'copy', 'sass', 'ts', 'update-api-extractor'));
  task('dev', series('clean', 'copy', 'sass', 'webpack-dev-server'));

  task('build:node-lib', series('clean', 'copy', series(condition('validate', () => !argv().min), 'ts:commonjs-only'))).cached();

  task(
    'build',
    series(
      'clean',
      'copy',
      'sass',
      parallel(
        condition('validate', () => !argv().min),
        series(
          'ts',
          parallel(
            condition('webpack', () => !argv().min && !!resolveCwd('webpack.config.js')),
            condition('lint-imports', () => !argv().min)
          )
        )
      )
    )
  ).cached();

task('validate', fs.existsSync(path.join(process.cwd(), 'jest.config.js')) ? series('tslint', 'jest') : 'tslint');
  task('code-style', series('prettier', 'tslint'));
  task('update-api', series('clean', 'copy', 'sass', 'ts', 'update-api-extractor'));
  task('dev', series('clean', 'copy', 'sass', 'webpack-dev-server'));

  task('build:node-lib', series('clean', 'copy', series(condition('validate', () => !argv().min), 'ts:commonjs-only'))).cached();

  task(
    'build',
    series(
      'clean',
      'copy',
      'sass',
      parallel(
        condition('validate', () => !argv().min),
        series(
          'ts',
          parallel(
            condition('webpack', () => !argv().min && !!resolveCwd('webpack.config.js')),
            condition('lint-imports', () => !argv().min)
          )
        )
      )
    )
  ).cached();

  task('no-op', () => {}).cached();
};

task('webpack-dev-server', webpackDevServer);
  task('verify-api-extractor', verifyApiExtractor);
  task('update-api-extractor', updateApiExtractor);
  task('lint-imports', lintImports);
  task('prettier', prettier);
  task('bundle-size-collect', bundleSizeCollect);
  task('check-for-modified-files', checkForModifiedFiles);
  task('generate-version-files', generateVersionFiles);
  task('generate-package-manifest', generatePackageManifestTask);
  task('ts', () => {
    return argv().commonjs
      ? 'ts:commonjs-only'
      : parallel('ts:commonjs', 'ts:esm', condition('ts:amd', () => argv().production && !argv().min));
  });

  task('validate', fs.existsSync(path.join(process.cwd(), 'jest.config.js')) ? series('tslint', 'jest') : 'tslint');
  task('code-style', series('prettier', 'tslint'));
  task('update-api', series('clean', 'copy', 'sass', 'ts', 'update-api-extractor'));
  task('dev', series('clean', 'copy', 'sass', 'webpack-dev-server'));

  task('build:node-lib', series('clean', 'copy', series(condition('validate', () => !argv().min), 'ts:commonjs-only'))).cached();

  task(
    'build',
    series(
      'clean',
      'copy',
      'sass',
      parallel(
        condition('validate', () => !argv().min),
        series(
          'ts',