def has_children(self):
return bool(self._my_map['<STR_LIT>'])<EOL>
Tests if any children are available in this node structure.

        There may be no more children available in this node structure
        but this node may have children in the hierarchy.

        return: (boolean) - ``true`` if this node has children,
                ``false`` otherwise
        *compliance: mandatory -- This method must be implemented.*