private PartitionableSubscribableImpl(PartitionedMultiSubjectProxy parent, IList <TypeErasedKeyBinding <T> > bindings)
     : base(bindings)
 {
     _parent = parent;
 }
 public PartitionableSubscribableImpl(PartitionedMultiSubjectProxy parent)
     : this(parent, bindings : null)
 {
 }