\brief a change as occurred in the list of children.
This is only generated by watches on the child list of a node. These watches are set using \ref zoo_get_children or \ref zoo_get_children2.
See Implementation
\brief a change as occurred in the list of children.
This is only generated by watches on the child list of a node. These watches are set using \ref zoo_get_children or \ref zoo_get_children2.