tree/js/extensions/tree-node-selectable.js:6
        Tree.Node extension that adds methods useful for nodes in trees that use the
Tree.Selectable extension.
isSelectedReturns true if this node is currently selected.
true if this node is currently selected, false
    otherwise.
select[options]
                    
                Selects this node.
[options]
                        Object
                        optional
                    
                    
                    Options.
[silent=false]
                                    Boolean
                                    optional
                                
                                If true, the select event
        will be suppressed.
[src]
                                    String
                                    optional
                                
                                Source of the change, to be passed along to the event facade of the resulting event. This can be used to distinguish between changes triggered by a user and changes triggered programmatically, for example.
unselect[options]
                    
                Unselects this node.
[options]
                        Object
                        optional
                    
                    
                    Options.
[silent=false]
                                    Boolean
                                    optional
                                
                                If true, the unselect event
        will be suppressed.
[src]
                                    String
                                    optional
                                
                                Source of the change, to be passed along to the event facade of the resulting event. This can be used to distinguish between changes triggered by a user and changes triggered programmatically, for example.