docs: public String setClassification(String classificationType) {
          Metadata metadata = new Metadata().add(Metadata.CLASSIFICATION_KEY, classificationType);
          Metadata classification = null;
  
          try {
              classification = this.createMetadata(Metadata.CLASSIFICATION_TEMPLATE_KEY, "enterprise", metadata);
          } catch (BoxAPIException e) {
              if (e.getResponseCode() == 409) {
                  metadata = new Metadata("enterprise", Metadata.CLASSIFICATION_TEMPLATE_KEY);
                  metadata.replace(Metadata.CLASSIFICATION_KEY, classificationType);
                  classification = this.updateMetadata(metadata);
              } else {
                  throw e;
              }
          }
  
          return classification.getString(Metadata.CLASSIFICATION_KEY);
      }