code: def to_dict(self):
          
          public_keys = [public_key.b64encoded for public_key in self.public_keys]
          return dict(name=self.name, passwd=self.passwd, uid=self.uid, gid=self.gid, gecos=self.gecos,
                      home_dir=self.home_dir, shell=self.shell, public_keys=public_keys)
docs: Return the user as a dict.