docs: function getMessengerProfile (fields) {
    return new Promise (async (resolve, reject) => {
      if (!fields) {
        fields = [
          'account_linking_url',
          'persistent_menu',
          'get_started',
          'greeting',
          'whitelisted_domains',
          'payment_settings',
          'target_audience',
          'home_url'
        ];
      }
  
      fields = fields.join(',');
      
      try {
        let response = await this.callMessengerProfileApi(fields);
        resolve(response);
      } catch (e) {
        reject(e);
      }
    });
  }