@@ -639,20 +639,20 @@ export class CdkTree<T, K = T> implements AfterContentChecked, CollectionViewer,
639639 }
640640
641641 /**
642- * For the given node, determine the size of the parent's child set.
643- *
644- * This is intended to be used for `aria-setsize`.
645- */
642+ * For the given node, determine the size of the parent's child set.
643+ *
644+ * This is intended to be used for `aria-setsize`.
645+ */
646646 _getSetSize ( dataNode : T ) {
647647 const group = this . _getNodeGroup ( dataNode ) ;
648648 return group . length ;
649649 }
650650
651651 /**
652- * For the given node, determine the index (starting from 1) of the node in its parent's child set.
653- *
654- * This is intended to be used for `aria-posinset`.
655- */
652+ * For the given node, determine the index (starting from 1) of the node in its parent's child set.
653+ *
654+ * This is intended to be used for `aria-posinset`.
655+ */
656656 _getPositionInSet ( dataNode : T ) {
657657 const group = this . _getNodeGroup ( dataNode ) ;
658658 return group . indexOf ( dataNode ) + 1 ;
@@ -847,19 +847,19 @@ export class CdkTreeNode<T, K = T> implements FocusableOption, OnDestroy, OnInit
847847 }
848848
849849 /**
850- * Determines the size of this node's parent's child set.
851- *
852- * This is intended to be used for `aria-setsize`.
853- */
850+ * Determines the size of this node's parent's child set.
851+ *
852+ * This is intended to be used for `aria-setsize`.
853+ */
854854 _getSetSize ( ) : number {
855855 return this . _tree . _getSetSize ( this . _data ) ;
856856 }
857857
858858 /**
859- * Determines the index (starting from 1) of this node in its parent's child set.
860- *
861- * This is intended to be used for `aria-posinset`.
862- */
859+ * Determines the index (starting from 1) of this node in its parent's child set.
860+ *
861+ * This is intended to be used for `aria-posinset`.
862+ */
863863 _getPositionInSet ( ) : number {
864864 return this . _tree . _getPositionInSet ( this . _data ) ;
865865 }
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