code: public static Iterable<BoxUser.Info> getAllEnterpriseUsers(final BoxAPIConnection api, final String filterTerm,
              final String... fields) {
          return getUsersInfoForType(api, filterTerm, null, null, fields);
      }
docs: Returns an iterable containing all the enterprise users that matches the filter and specifies which child fields
  to retrieve from the API.
  @param  api        the API connection to be used when retrieving the users.
  @param  filterTerm used to filter the results to only users starting with this string in either the name or the
  login. Can be null to not filter the results.
  @param  fields     the fields to retrieve. Leave this out for the standard fields.
  @return            an iterable containing all the enterprise users that matches the filter.