@JsonIgnore
  public List<EntityGroupInfo<T, R>> getEntityGroupInfo() {
    return entities.values().stream()
        .flatMap(x -> x.getGroups().stream())
        .collect(Collectors.toList());
  }
Returns the combined payload of the list call

@return a list of {@link EntityGroupInfo}
geode-management/src/main/java/org/apache/geode/management/api/ClusterManagementListResult.java