docs: function (suggestions) {
                  var selectedSuggestions = this.selectedSuggestions;
                  var filteredSuggestions = [];
                  for (var i = 0; i < suggestions.length; i++) {
                      var curSuggestion = suggestions[i];
                      if (this._findSuggestion(selectedSuggestions, curSuggestion) == -1) {
                          filteredSuggestions.push(curSuggestion);
                      }
                  }
                  return filteredSuggestions;
              }