code: public PagedResult<Discussion> listDiscussions(long sheetId, long rowId, PaginationParameters pagination, EnumSet<DiscussionInclusion> includes) throws SmartsheetException{
          String path = "sheets/" + sheetId + "/rows/" + rowId + "/discussions" ;
          HashMap<String, Object> parameters = new HashMap<String, Object>();
  
          parameters.put("include", QueryUtil.generateCommaSeparatedList(includes));
          path += QueryUtil.generateUrl(null, parameters);
  
          if (pagination != null) {
              path += pagination.toQueryString();
          }
  
          return this.listResourcesWithWrapper(path, Discussion.class);
      }
docs: Gets a list of all Discussions associated with the specified Row.
  
  It mirrors to the following Smartsheet REST API method: GET /sheets/{sheetId}/rows/{rowId}/discussions
  
  Exceptions:
  IllegalArgumentException : if any argument is null
  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 sheetId the sheet ID
  @param rowId the row ID
  @param pagination the pagination pagination
  @param includes the optional include parameters
  @return the row discussions
  @throws SmartsheetException the smartsheet exception