How to use the primeng/primeng.Panel function in primeng

var DescriptionComponent = (function () {
    function DescriptionComponent() {
    }
    DescriptionComponent = __decorate([
        core_1.Component({
            selector: 'description',
            templateUrl: './app/description/description.html',
            directives: [primeng_1.InputTextarea, primeng_1.Header, primeng_1.Panel]
        }), 
        __metadata('design:paramtypes', [])
    ], DescriptionComponent);
    return DescriptionComponent;
}());
exports.DescriptionComponent = DescriptionComponent;

var parentNode = this.findNodeById(this.selectedNode.parentId, this.files);
            var index = parentNode.children.findIndex(function (child) { return child.id === _this.selectedNode.id; });
            if (index > -1) {
                parentNode.children.splice(index, 1);
            }
        }
    };
    __decorate([
        core_1.Output(), 
        __metadata('design:type', Object)
    ], FileManagerComponent.prototype, "fileSelected", void 0);
    FileManagerComponent = __decorate([
        core_1.Component({
            selector: 'filemanager',
            templateUrl: './app/filemanager/filemanager.html',
            directives: [primeng_1.Tree, primeng_1.Panel, primeng_1.Toolbar, primeng_1.Button, primeng_1.Dialog, primeng_1.InputText]
        }), 
        __metadata('design:paramtypes', [core_1.Renderer])
    ], FileManagerComponent);
    return FileManagerComponent;
}());
exports.FileManagerComponent = FileManagerComponent;

};
    TagsComponent.prototype.filterTags = function (query, tagList) {
        var filtered = [];
        for (var i = 0; i < tagList.length; i++) {
            var tag = tagList[i];
            if (tag.toLowerCase().indexOf(query.toLowerCase()) == 0) {
                filtered.push(tag);
            }
        }
        return filtered;
    };
    TagsComponent = __decorate([
        core_1.Component({
            selector: 'tags',
            templateUrl: './app/tags/tags.html',
            directives: [primeng_1.AutoComplete, primeng_1.Panel]
        }), 
        __metadata('design:paramtypes', [tag_service_1.TagService])
    ], TagsComponent);
    return TagsComponent;
}());
exports.TagsComponent = TagsComponent;