docs: function (successCB, failureCB, args, env) {
          var result = new PluginResult(args, env);
          var response = g11n.getInstance().InvokeMethod('getNumberPattern', args);
          var data = JSON.parse(response);
          console.log('getNumberPattern: ' + JSON.stringify(response));
  
          if (data.error !== undefined) {
              result.error({
                  code: data.error.code,
                  message: data.error.message
              });
          } else {
              result.ok({
                  pattern: data.result.pattern,
                  symbol: data.result.symbol,
                  fraction: data.result.fraction,
                  rounding: data.result.rounding,
                  positive: data.result.positive,
                  negative: data.result.negative,
                  decimal: data.result.decimal,
                  grouping: data.result.grouping
              });
          }
      }