code: public void setFleetIds(java.util.Collection<String> fleetIds) {
          if (fleetIds == null) {
              this.fleetIds = null;
              return;
          }
  
          this.fleetIds = new java.util.ArrayList<String>(fleetIds);
      }
docs: <p>
  Unique identifier for a fleet(s) to retrieve capacity information for. To request capacity information for all
  fleets, leave this parameter empty.
  </p>
  
  @param fleetIds
  Unique identifier for a fleet(s) to retrieve capacity information for. To request capacity information for
  all fleets, leave this parameter empty.