code: function Client(name, password) {
  
      if (!(this instanceof Client)) {
          return new Client(name, password);
      }
  
      this.name = name || 'RETS-Connector1/2';
      this.password = password || '';
  
  }
docs: Client class encapsulates User Agent instance data.
  @param {Object} config
  @param {string} config.name - The user agent's name
  @param {string} config.password - The user agent's password