From 0cfa3b6a112adb4f447dd98103fda6cb7ab16322 Mon Sep 17 00:00:00 2001
From: RacerCodeQualityPyreMissingAnnotations Bot
 <noreply+1401739305002972@fb.com>
Date: Thu, 28 May 2026 18:09:56 -0700
Subject: [PATCH] Fix PYRE_MISSING_ANNOTATIONS issue in
 fbcode/HolisticTraceAnalysis/hta/common/call_stack.py

Reviewed By: hanle11

Differential Revision: D105531388
---
 hta/common/call_stack.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hta/common/call_stack.py b/hta/common/call_stack.py
index 4383ecfb..3e7ac2c5 100644
--- a/hta/common/call_stack.py
+++ b/hta/common/call_stack.py
@@ -220,7 +220,7 @@ def __init__(
         self._construct_call_stack_graph(df)
         self._compute_depth()
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         ret = "\n"
         for key, item in self.nodes.items():
             ret = ret + f"    {key}: {item}\n"