docs: public void setUserHierarchyGroupSummaryList(java.util.Collection<HierarchyGroupSummary> userHierarchyGroupSummaryList) {
          if (userHierarchyGroupSummaryList == null) {
              this.userHierarchyGroupSummaryList = null;
              return;
          }
  
          this.userHierarchyGroupSummaryList = new java.util.ArrayList<HierarchyGroupSummary>(userHierarchyGroupSummaryList);
      }