Fix annotation

ami-iit · Nov 8, 2022 · 24540eb · 24540eb
1 parent f0faeb1
commit 24540eb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/liecasadi/so3.py b/src/liecasadi/so3.py
@@ -4,6 +4,7 @@
 
 import dataclasses
 from dataclasses import field
+from typing import Union
 
 import casadi as cs
 import numpy as np
@@ -113,7 +114,7 @@ def quaternion_derivative(
         self,
         omega: Vector,
         omega_in_body_fixed: bool = False,
-        baumgarte_coefficient: float = None,
+        baumgarte_coefficient: Union[float, None] = None,
     ):
 
         if baumgarte_coefficient is not None: