From 124b3758c0da8c8fa9f11bfd93700cdcf52a789d Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Thu, 29 Dec 2022 11:21:27 -0500
Subject: mypy: check results.py

---
 coverage/plugin.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'coverage/plugin.py')

diff --git a/coverage/plugin.py b/coverage/plugin.py
index 9947351e..5f101aaa 100644
--- a/coverage/plugin.py
+++ b/coverage/plugin.py
@@ -458,7 +458,7 @@ class FileReporter:
         """
         return set()
 
-    def translate_arcs(self, arcs: Set[TArc]) -> Set[TArc]:
+    def translate_arcs(self, arcs: Iterable[TArc]) -> Set[TArc]:
         """Translate recorded arcs into reported arcs.
 
         Similar to :meth:`translate_lines`, but for arcs.  `arcs` is a set of
@@ -469,7 +469,7 @@ class FileReporter:
         The default implementation returns `arcs` unchanged.
 
         """
-        return arcs
+        return set(arcs)
 
     def exit_counts(self) -> Dict[TLineNo, int]:
         """Get a count of exits from that each line.
-- 
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