code: public PagedResult<User> listUsers(Set<String> email, PaginationParameters pagination) throws SmartsheetException {
          String path = "users";
          HashMap<String, Object> parameters = new HashMap<String, Object>();
  
          if (pagination != null){
              parameters = pagination.toHashMap();
          }
          parameters.put("email", QueryUtil.generateCommaSeparatedList(email));
  
          path += QueryUtil.generateUrl(null, parameters);
          return this.listResourcesWithWrapper(path, User.class);
      }
docs: List all users.
  
  It mirrors to the following Smartsheet REST API method: GET /users
  
  Exceptions:
  - InvalidRequestException : if there is any problem with the REST API request
  - AuthorizationException : if there is any problem with the REST API authorization(access token)
  - ServiceUnavailableException : if the REST API service is not available (possibly due to rate limiting)
  - SmartsheetRestException : if there is any other REST API related error occurred during the operation
  - SmartsheetException : if there is any other error occurred during the operation
  
  @param email the list of email addresses
  @param pagination the object containing the pagination query parameters
  @return all users (note that empty list will be returned if there is none)
  @throws SmartsheetException the smartsheet exception