Function
traverseChildren
Common
```kotlin
fun DelegatableNode.traverseChildren(key: Any?, block: (TraversableNode) -> Boolean)
```
Executes `block` for all direct children of the node with a matching `key`.
Note 1: This stops at the children and does not include grandchildren and so on down the tree.
Note 2: The parameter `block`'s return boolean value will determine if the traversal will
continue (true = continue, false = cancel).
traverseChildren
Common
```kotlin
fun T.traverseChildren(block: (T) -> Boolean) where T : TraversableNode
```
Executes `block` for all direct children of the node that are of the same class.
Note 1: This stops at the children and does not include grandchildren and so on down the tree.
Note 2: The parameter `block`'s return boolean value will determine if the traversal will
continue (true = continue, false = cancel).