- /// Descriptor of the structure a tree
-/// (number of levels, descriptors of each level, ...).
-/// Any tree has at least one level (level 0) of name "Root"
-class Descriptor
+ /** Descriptor of the structure a tree
+ * (number of levels, descriptors of each level, ...).
+ * Any tree has at least one level (level 0) of name "Root"
+ */
+ class Descriptor