update imports

Gurobi · Jun 13, 2024 · b8d9138 · b8d9138
1 parent 8cb9053
commit b8d9138
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/tests/test_metromap.py b/tests/test_metromap.py
@@ -1,3 +1,4 @@
+import io
 import pathlib
 import unittest