From 6d57016a51b936c014167a693e7315fe40521a66 Mon Sep 17 00:00:00 2001
From: John Lambert <johnlambert@gatech.edu>
Date: Wed, 1 Sep 2021 10:15:00 -0600
Subject: [PATCH] use boost::optional in .i file directly

---
 gtsam/geometry/geometry.i | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/geometry/geometry.i b/gtsam/geometry/geometry.i
index bf906d67f..9baa49e8e 100644
--- a/gtsam/geometry/geometry.i
+++ b/gtsam/geometry/geometry.i
@@ -438,7 +438,7 @@ class Pose2 {
   void pickle() const;
 };
   
-gtsam::Pose2 align(const gtsam::Point2Pairs& pairs);
+boost::optional<gtsam::Pose2> align(const gtsam::Point2Pairs& pairs);
 
 #include <gtsam/geometry/Pose3.h>
 class Pose3 {