diff --git a/stdlib/2and3/antigravity.pyi b/stdlib/2and3/antigravity.pyi
new file mode 100644
index 000000000..94e67addd
--- /dev/null
+++ b/stdlib/2and3/antigravity.pyi
@@ -0,0 +1,5 @@
+
+import sys
+
+if sys.version_info >= (3, 0):
+    def geohash(latitude: float, longitude: float, datedow: bytes) -> None: ...