docs: public Metadata createMetadata(String templateName, String scope, Metadata metadata) {
          URL url = METADATA_URL_TEMPLATE.build(this.getAPI().getBaseURL(), this.getID(), scope, templateName);
          BoxAPIRequest request = new BoxAPIRequest(this.getAPI(), url, "POST");
          request.addHeader("Content-Type", "application/json");
          request.setBody(metadata.toString());
          BoxJSONResponse response = (BoxJSONResponse) request.send();
          return new Metadata(JsonObject.readFrom(response.getJSON()));
      }