docs: function (ds) {
              this.ds = {};
  
              if (ds) {
                  var nds = {},
                      i;
  
                  for (i in ds) {
                      if (ds.hasOwnProperty(i)) {
                          nds[i] = toData(ds[i]);
                      }
                  }
  
                  this.ds = nds;
              }
          }