code: def set_unit_desired_state(self, unit, desired_state):
          
  
          if desired_state not in self._STATES:
              raise ValueError('state must be one of: {0}'.format(
                  self._STATES
              ))
  
          # if we are given an object, grab it's name property
          # otherwise, convert to unicode
          if isinstance(unit, Unit):
              unit = unit.name
          else:
              unit = str(unit)
  
          self._single_request('Units.Set', unitName=unit, body={
              'desiredState': desired_state
          })
  
          return self.get_unit(unit)
docs: Update the desired state of a unit running in the cluster
  
          Args:
              unit (str, Unit): The Unit, or name of the unit to update
  
              desired_state: State the user wishes the Unit to be in
                            ("inactive", "loaded", or "launched")
          Returns:
              Unit: The unit that was updated
  
          Raises:
              fleet.v1.errors.APIError: Fleet returned a response code >= 400
              ValueError: An invalid value was provided for ``desired_state``