Fix typing

dcherian · dcherian · commit 3f4dde27ece7 · 2023-03-08T22:11:59.000-07:00
diff --git a/xarray/core/groupby.py b/xarray/core/groupby.py
@@ -479,7 +479,7 @@ def __init__(
                 "dimension"
             )
 
-        self._codes: DataArray = None
+        self._codes: DataArray
         if grouper is not None:
             unique_coord, group_indices, codes, full_index = _factorize_grouper(
                 group, grouper

Original file line number	Diff line number	Diff line change
`@@ -479,7 +479,7 @@ def __init__(`
`479`	`479`	`"dimension"`
`480`	`480`	`)`
`481`	`481`
`482`		`- self._codes: DataArray = None`
	`482`	`+ self._codes: DataArray`
`483`	`483`	`if grouper is not None:`
`484`	`484`	`unique_coord, group_indices, codes, full_index = _factorize_grouper(`
`485`	`485`	`group, grouper`