code: public void putFleetsFleetId(Long fleetId, String datasource, String token, FleetNewSettings fleetNewSettings)
              throws ApiException {
          putFleetsFleetIdWithHttpInfo(fleetId, datasource, token, fleetNewSettings);
      }
docs: Update fleet Update settings about a fleet --- SSO Scope:
  esi-fleets.write_fleet.v1
  
  @param fleetId
  ID for a fleet (required)
  @param datasource
  The server name you would like data from (optional, default to
  tranquility)
  @param token
  Access token to use if unable to set a header (optional)
  @param fleetNewSettings
  (optional)
  @throws ApiException
  If fail to call the API, e.g. server error or cannot
  deserialize the response body