code: public String getTemplateId() throws HelloSignException {
          List<String> templateIds = getTemplateIds();
          if (templateIds.size() == 0) {
              return null;
          }
          return templateIds.get(0);
      }
docs: Get the template ID that will be used with this request.
  
  @return String
  @throws HelloSignException thrown if there is a problem parsing the
  backing JSON object.