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-rw-r--r--libbe/tree.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/libbe/tree.py b/libbe/tree.py
index 45ae085..06d09e5 100644
--- a/libbe/tree.py
+++ b/libbe/tree.py
@@ -15,6 +15,10 @@
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+"""
+Define a traversable tree structure.
+"""
+
import doctest
class Tree(list):