Crest::CrestApiBase Node1 Crest::CrestApiBase + ~CrestApiBase() + createGlobalTag() + findGlobalTag() + listGlobalTags() + removeGlobalTag() + createTag() + findTag() + listTags() + removeTag() + getSize() and 12 more... # getHash() # getHashForFile() # getClientVersion() Node2 std::string Node2->Node1 -s_CREST_CLIENT_VERSION Node3 std::basic_string< char > Node3->Node2