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venv/lib/python3.9/site-packages/fontTools/misc/iterTools.py

@@ -0,0 +1,12 @@
+from itertools import *
+
+# Python 3.12:
+if "batched" not in globals():
+    # https://docs.python.org/3/library/itertools.html#itertools.batched
+    def batched(iterable, n):
+        # batched('ABCDEFG', 3) --> ABC DEF G
+        if n < 1:
+            raise ValueError("n must be at least one")
+        it = iter(iterable)
+        while batch := tuple(islice(it, n)):
+            yield batch