Add dir.rbs

sue445 · sue445 · commit 6b304193fa72 · 2024-10-13T22:40:23.000+09:00
diff --git a/sig/non-gemify/dir.rbs b/sig/non-gemify/dir.rbs
@@ -0,0 +1,3 @@
+class Dir
+  def self.tmpdir: () -> String
+end
