docs: private static Iterable<BoxUser.Info> getUsersInfoForType(final BoxAPIConnection api,
            final String filterTerm, final String userType, final String externalAppUserId, final String... fields) {
          return new Iterable<BoxUser.Info>() {
              public Iterator<BoxUser.Info> iterator() {
                  QueryStringBuilder builder = new QueryStringBuilder();
                  if (filterTerm != null) {
                      builder.appendParam("filter_term", filterTerm);
                  }
                  if (userType != null) {
                      builder.appendParam("user_type", userType);
                  }
                  if (externalAppUserId != null) {
                      builder.appendParam("external_app_user_id", externalAppUserId);
                  }
                  if (fields.length > 0) {
                      builder.appendParam("fields", fields);
                  }
                  URL url = USERS_URL_TEMPLATE.buildWithQuery(api.getBaseURL(), builder.toString());
                  return new BoxUserIterator(api, url);
              }
          };
      }