Revert "Delete .venv directory"

This reverts commit 5a2693bd9f.

.venv/lib/python3.9/site-packages/numpy/polynomial/polyutils.pyi

@@ -0,0 +1,12 @@
+from typing import List
+
+__all__: List[str]
+
+class RankWarning(UserWarning): ...
+
+def trimseq(seq): ...
+def as_series(alist, trim=...): ...
+def trimcoef(c, tol=...): ...
+def getdomain(x): ...
+def mapparms(old, new): ...
+def mapdomain(x, old, new): ...