code: public void setPlacementStrategy(java.util.Collection<PlacementStrategy> placementStrategy) {
          if (placementStrategy == null) {
              this.placementStrategy = null;
              return;
          }
  
          this.placementStrategy = new com.amazonaws.internal.SdkInternalList<PlacementStrategy>(placementStrategy);
      }
docs: <p>
  The placement strategy that determines how tasks for the service are placed.
  </p>
  
  @param placementStrategy
  The placement strategy that determines how tasks for the service are placed.