/**
* Get an array-type node containing the children of this node.
* Returns false if this is not a tree node.
- * @return PPNode
+ * @return false|PPNode
*/
public function getChildren();
/**
* Get the first child of a tree node. False if there isn't one.
*
- * @return PPNode
+ * @return false|PPNode
*/
public function getFirstChild();
/**
* Get the next sibling of any node. False if there isn't one
- * @return PPNode
+ * @return false|PPNode
*/
public function getNextSibling();
* Get all children of this tree node which have a given name.
* Returns an array-type node, or false if this is not a tree node.
* @param string $type
- * @return bool|PPNode
+ * @return false|PPNode
*/
public function getChildrenOfType( $type );