Use the AddKeyValuePair member function to specify the information you want to store in the key.
  void TSampleObjectBaseTest::CopyInfo(TDictionaryOf<TStandardText,TText>& infoDict) const
  {
      TTest::CopyInfo;
      TAllocationHeap heap(&infoDict);
      
      // You can define your own keywords
      static const TStandardText kSampleTestInformationKey("Sample Info");
      
      // Developer defined key
      infoDict.AddKeyValuePair(new(heap) TStandardText(kSampleTestInformationKey), new(heap) TStandardText(
          "This is the way to add your test information"));
  }