Uncaught SyntaxError: Unexpected end of input

blockManager.add('design', {
    label: 'design',
    content: {
        script: function () {
                $.ajax({
                    url: parent.DrupalBasePath + '/api/v1/rnode_operations',
                    method: 'POST',
                    dataType: 'json'
                }).done(function( data ) {
                    Example.show('Custom button clicked');
                    console.log( data )
                });
            var dialog = parent.bootbox.dialog({
                title: 'Flyiers',
                message: '<p>Fliers</p>',
                buttons: {
                    noclose: {
                        label: 'Load More',
                        className: 'btn-info',
                        callback: function(){
                            Example.show('Custom button clicked');
                            return false;
                        }
                    }
                }
            });
        },
        style: {
          width: '100px',
          height: '100px',
          'background-color': 'red',
        }
    },
    attributes: {class: 'gjs-fonts gjs-f-image gjs-block gjs-one-bg gjs-four-color-h'},
});