Add Dtype

avinashpancham · avinashpancham · commit 5f3e80f4ad3c · 2020-12-24T15:48:30.000+01:00
diff --git a/pandas/_testing.py b/pandas/_testing.py
@@ -2267,7 +2267,7 @@ def makeCustomDataframe(
     data_gen_f=None,
     c_ndupe_l=None,
     r_ndupe_l=None,
-    dtype=None,
+    dtype: Optional[Dtype] = None,
     c_idx_type=None,
     r_idx_type=None,
 ):
