this.map = map;
  }

  /** Used during deserialization only. */
  final void setMap(Map<K, Collection<V>> map) {
    this.map = map;
    totalSize = 0;
    for (Collection<V> values : map.values()) {
      checkArgument(!values.isEmpty());
      totalSize += values.size();
    }
  }

  /**
   * Creates an unmodifiable, empty collection of values.
   *

            })
            .entries
            .map { TestProjectDuration(it.key, it.value) }
            .sortedBy { -it.totalTime }
    return splitIntoBuckets(
        LinkedList(testProjectDurations),
        TestProjectDuration::totalTime,
        { largeElement: TestProjectDuration, size: Int -> largeElement.split(size) },
        { list: List<TestProjectDuration> -> MultipleTestProjectBucket(list) },

            private long totalTime = 0;

            @Override
            public void store(DataStoreParams paramMap, Map<String, Object> dataMap) {
                try {
                    Thread.sleep(10); // Simulate processing time
                } catch (InterruptedException e) {
                    // Ignore
                }
                totalTime = System.currentTimeMillis() - startTime;

        }

        final PathMappingHelper pathMappingHelper = ComponentUtil.getPathMappingHelper();
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long totalTime = systemHelper.getCurrentTimeAsLong();

        final CrawlingInfoHelper crawlingInfoHelper = ComponentUtil.getCrawlingInfoHelper();

        try {

    std::vector<size_t> lens(expected.size());
    std::unique_ptr<char[]> storage(new char[m.total_size]);
    TF_OperationGetAttrStringList(op, tensorflow::kColocationAttrName,
                                  values.data(), lens.data(), expected.size(),
                                  storage.get(), m.total_size, s_);
    EXPECT_EQ(TF_OK, TF_GetCode(s_)) << TF_Message(s_);
    for (int i = 0; i < expected.size(); ++i) {