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N(C.Node.superclass.insertBefore.apply(this,arguments));},next:function(W){return N(B[W?"getNextSiblingBy":"getNextSibling"](this._node,W));},on:function(Z,Y,b,W){var c=this,a=function(d,f){if(d.target){Y.call(this,new U(d,d.relatedTarget||d.originalTarget),f);}else{Y.call(this,d);}};c.addListener.call(c,Z,a,b,W);return{detach:function(){c.removeListener.call(c,Z,a,b,W);}};},one:function(W){return N(T.query(W,this._node,true));},query:function(W){return this.one(W);},previous:function(W){return N(B[W?"getPreviousSiblingBy":"getPreviousSibling"](this._node,W));},setXY:function(W){B.setXY(this._node,W);},remove:function(){this._node.parentNode.removeChild(this._node);}});C.Event.attach=function(b,Z,a){var W=N(a),Y=new C.Array(arguments,null,true);Y.unshift();W.on.apply(W,Y);};C.Event.detach=function(b,Z,a){var W=N(a),Y=new 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