public EventStoreClientAPIFixture()
 {
     if (UseCluster)
     {
         _cluster = new EventStoreClientAPIClusterFixture();
     }
     else
     {
         _singleNode = new EventStoreClientAPISingleNodeFixture();
     }
 }
 public connect_to_cluster(EventStoreClientAPIClusterFixture fixture)
 {
     _fixture = fixture;
 }