code: def update_team_days_off(self, days_off_patch, team_context, iteration_id):
          
          project = None
          team = None
          if team_context is not None:
              if team_context.project_id:
                  project = team_context.project_id
              else:
                  project = team_context.project
              if team_context.team_id:
                  team = team_context.team_id
              else:
                  team = team_context.team
  
          route_values = {}
          if project is not None:
              route_values['project'] = self._serialize.url('project', project, 'string')
          if team is not None:
              route_values['team'] = self._serialize.url('team', team, 'string')
          if iteration_id is not None:
              route_values['iterationId'] = self._serialize.url('iteration_id', iteration_id, 'str')
          content = self._serialize.body(days_off_patch, 'TeamSettingsDaysOffPatch')
          response = self._send(http_method='PATCH',
                                location_id='2d4faa2e-9150-4cbf-a47a-932b1b4a0773',
                                version='5.0',
                                route_values=route_values,
                                content=content)
          return self._deserialize('TeamSettingsDaysOff', response)
docs: UpdateTeamDaysOff.
          Set a team's days off for an iteration
          :param :class:`<TeamSettingsDaysOffPatch> <azure.devops.v5_0.work.models.TeamSettingsDaysOffPatch>` days_off_patch: Team's days off patch containting a list of start and end dates
          :param :class:`<TeamContext> <azure.devops.v5_0.work.models.TeamContext>` team_context: The team context for the operation
          :param str iteration_id: ID of the iteration
          :rtype: :class:`<TeamSettingsDaysOff> <azure.devops.v5_0.work.models.TeamSettingsDaysOff>`