From d116dcb37126953e0628d728b10ef4dc55390ebc Mon Sep 17 00:00:00 2001
From: "Michael R. Crusoe" <michael.crusoe@gmail.com>
Date: Wed, 31 Jan 2024 14:03:00 +0100
Subject: [PATCH] mypy fixes

---
 cwltool/docker.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cwltool/docker.py b/cwltool/docker.py
index 44c681202f..a1b9c8a371 100644
--- a/cwltool/docker.py
+++ b/cwltool/docker.py
@@ -431,7 +431,8 @@ def create_runtime(
                 )
         shm_size_od, shm_bool = self.builder.get_requirement("http://commonwl.org/cwltool#ShmSize")
         if shm_bool:
-            runtime.append(f"--shm-size={shm_size_od['shmSize']}")
+            shm_size = cast(CWLObjectType, shm_size_od)["shmSize"]
+            runtime.append(f"--shm-size={shm_size}")
         return runtime, cidfile_path