Add type comment to setup.py

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index b09c9fa..a2689d3 100644
--- a/setup.py
+++ b/setup.py
@@ -121,6 +121,7 @@ class _M2CryptoBuildExt(build_ext.build_ext):
         self.bundledlls = None
 
     def finalize_options(self):
+        # type: (None) -> None
         """Append custom openssl include file and library linking options."""
         build_ext.build_ext.finalize_options(self)
         self.openssl_default = None