perf: document that counters is unstable

This commit is contained in:
William Ballenthin
2021-11-08 15:20:11 -07:00
parent 334425a08f
commit 6f6831f812

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@@ -1,6 +1,7 @@
import collections
from typing import Dict
# this structure is unstable and may change before the next major release.
counters: Dict[str, int] = collections.Counter()