code: public void setCacheEngineVersions(java.util.Collection<CacheEngineVersion> cacheEngineVersions) {
          if (cacheEngineVersions == null) {
              this.cacheEngineVersions = null;
              return;
          }
  
          this.cacheEngineVersions = new com.amazonaws.internal.SdkInternalList<CacheEngineVersion>(cacheEngineVersions);
      }
docs: <p>
  A list of cache engine version details. Each element in the list contains detailed information about one cache
  engine version.
  </p>
  
  @param cacheEngineVersions
  A list of cache engine version details. Each element in the list contains detailed information about one
  cache engine version.