docs: function(options) {
          var properties = options.properties;
          if (!properties){
              properties = {};
              options.properties = properties;
          }
          _applyProps(properties, this.options.properties, false)
          if (!properties[Xmla.PROP_CONTENT]) {
            properties[Xmla.PROP_CONTENT] = Xmla.PROP_CONTENT_SCHEMADATA;
          }
          if (!properties[Xmla.PROP_FORMAT]) {
            options.properties[Xmla.PROP_FORMAT] = Xmla.PROP_FORMAT_MULTIDIMENSIONAL;
          }
          var request = _applyProps(options, {
              method: Xmla.METHOD_EXECUTE
          }, true);
          return this.request(request);
      }