Add xarray dep

jeromekelleher · jeromekelleher · commit b436755e8759 · 2026-02-09T14:42:30.000Z
diff --git a/pyproject.toml b/pyproject.toml
@@ -89,7 +89,8 @@ test = [
     "bio2zarr==0.1.7",
     "tskit==1.0.0",
     "tqdm==4.67.1",
-    "twine==6.1.0"
+    "twine==6.1.0",
+    "xarray==2025.4.0",
 ]
 
 docs = [
