docs: def remove(self, username, user_api, filename=None, force=False):
          """Remove specified SSH public key from specified user."""
          self.keys = API.__get_keys(filename)
          self.username = username
          user = user_api.find(username)[0]
  
          if not force:  # pragma: no cover
              self.__confirm()
  
          for key in self.__delete_keys():
              operation = {'sshPublicKey': [(ldap3.MODIFY_DELETE, [key])]}
              self.client.modify(user.entry_dn, operation)