From b741ac23be50b88a27fe1e38f75632586344915f Mon Sep 17 00:00:00 2001
From: Thomas Frederiksen <thomas_frederiksen@ehu.eus>
Date: Wed, 8 Nov 2023 15:32:56 +0100
Subject: [PATCH] added vacuum to docstring

---
 src/sisl/geom/nanoribbon.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/sisl/geom/nanoribbon.py b/src/sisl/geom/nanoribbon.py
index 1bb95f2525..2d6db6e2d4 100644
--- a/src/sisl/geom/nanoribbon.py
+++ b/src/sisl/geom/nanoribbon.py
@@ -294,6 +294,8 @@ class _heteroribbon_section(CompositeGeometrySection):
         The bond length of the ribbon.
     kind: {'armchair', 'zigzag'}
         The kind of ribbon that this section should be.
+    vacuum :
+        minimum separation in transverse direction
     shift_quantum: bool, optional
         Whether the implementation will assist avoiding lone atoms (< 2 neighbours).