code: public ChangeSet changeSet(String name, String reference, Map<String, Object> attributes) {
          ChangeSet changeSet = new ChangeSet(instance);
  
          changeSet.setName(name);
          changeSet.setReference(reference);
          addAttributes(changeSet, attributes);
          changeSet.save();
          return changeSet;
      }
docs: Create a new ChangeSet with a name and reference.
  
  @param name       Initial name.
  @param reference  Reference value.
  @param attributes additional attributes for the ChangeSet.
  @return A newly minted ChangeSet that exists in the VersionOne system.