code: function(array){
          if (!array) array = [];
          var i, n = this.numHierarchies;
          for (i = 0; i < n; i++) array[i] = this._member(i);
          return array;
      }
docs: Gets the current tuple as an array of members.
  For a description of the structure of the member elements, see <code><a href="#method_member">member()</a></code>.
  @method readAsArray
  @param array {array} An existing array to store the members in. If omitted, a new array is returned.
  @return {array} An array of members that represents the current tuple.