docs: public void insertAttributeAt(Attribute attribute, int position) {
          if (this.instanceInformation == null) {
              this.instanceInformation = new InstanceInformation();
          }
          this.instanceInformation.insertAttributeAt(attribute, position);
          for (int i = 0; i < numInstances(); i++) {
              instance(i).setDataset(null);
              instance(i).insertAttributeAt(i);
              instance(i).setDataset(this);
          }
      }