如何在nightwatch.js中显示console.log？

// customCommands.js

exports.command = function () {
  this.execute(function () {
    console.log('Custom command: console.log is displayed');
  });
  return this;
};

// nightwatch.conf.js

module.exports = {
  // ...

  custom_commands_path: ['path/to/customCommands'],

  // ...
};

// test.js

module.exports = {
  'Test console.log': function (browser) {
    browser
      .url('https://www.example.com')
      .customCommand()
      .end();
  },
};

Custom command: console.log is displayed