mypy: Fix typing errors.

1 files changed, 3 insertions, 1 deletions

diff --git a/gn_auth/commands.py b/gn_auth/commands.py
index cc00413..02bed10 100644
--- a/gn_auth/commands.py
+++ b/gn_auth/commands.py
@@ -44,7 +44,9 @@ Returns the name of the specific redis hash for the specific task.
         conn.hset(name=unique_id, key="env", value=json.dumps(env))
     return unique_id
 
-def run_cmd(cmd: str, success_codes: Tuple = (0,), env: str = None) -> Dict:
+def run_cmd(cmd: str,
+            success_codes: Tuple = (0,),
+            env: Optional[str] = None) -> Dict:
     """Run CMD and return the CMD's status code and output as a dict"""
     parsed_cmd = json.loads(cmd)
     parsed_env = (json.loads(env) if env is not None else None)