`frozen` - when `true` on an `async` paper, the paper is frozen. This means that changes made in this paper's graph are not reflected by the paper until this state is reversed. Use `paper.unfreeze()` to unfreeze the paper, and `paper.freeze()` to freeze it again. (You may also use `paper.updateViews()` to manually refresh the paper and leave it frozen.)

Example:

`

    var graph = new joint.dia.Graph();
    graph.resetCells([cell1, cell2]);
    var paper = new joint.dia.Paper({
    	el: document.getElementById('paper-holder'),
    	model: graph,
    	frozen: true
    });
    paper.unfreeze();

`