Inheritance: global::ProtoBuf.IExtensible
 internal void SetHeaderWithAccountAndGuid(string account, ulong guid)
 {
     NodeMessageWithAccountAndGuid header = m_NodeHeader as NodeMessageWithAccountAndGuid;
       if (null == header) {
     header = new NodeMessageWithAccountAndGuid();
     m_NodeHeader = header;
       }
       header.m_Account = account;
       header.m_Guid = guid;
 }