code: function(a, v, relative) {
      // apply attributes individually
      if (typeof a == 'object') {
        for (var key in a)
          this.attr(key, a[key])
  
      } else {
        // the MorphObj takes care about the right function used
        this.add(a, new SVG.MorphObj(null, v), 'attrs')
      }
  
      return this
    }
docs: Add animatable attributes