From a78b7f36083af3140c2f98674485e5e7a78d689a Mon Sep 17 00:00:00 2001
From: Nitesh Kumar <166297874+niteshg97@users.noreply.github.com>
Date: Tue, 26 May 2026 10:05:50 +0530
Subject: [PATCH 1/3] fix DynamicFlow optimizer updates

---
 hls4ml/model/flow/flow.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hls4ml/model/flow/flow.py b/hls4ml/model/flow/flow.py
index 43415f5ac0..6a2185d721 100644
--- a/hls4ml/model/flow/flow.py
+++ b/hls4ml/model/flow/flow.py
@@ -62,10 +62,10 @@ def optimizers(self):
         return optimizers
 
     def _add_optimizer(self, opt_name):
-        self._added_optimizers.put(opt_name)
+        self._added_optimizers.add(opt_name)
 
     def _remove_optimizer(self, opt_name):
-        self._removed_optimizers.put(opt_name)
+        self._removed_optimizers.add(opt_name)
 
 
 flow_map = {}

From 0279c020213cbea809b0edaba5e4700986535639 Mon Sep 17 00:00:00 2001
From: Nitesh Kumar <166297874+niteshg97@users.noreply.github.com>
Date: Tue, 26 May 2026 10:11:12 +0530
Subject: [PATCH 2/3] Add DynamicFlow update regression test

---
 test/pytest/test_flows.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test/pytest/test_flows.py b/test/pytest/test_flows.py
index e46dde70d6..bc1726abbf 100644
--- a/test/pytest/test_flows.py
+++ b/test/pytest/test_flows.py
@@ -119,3 +119,11 @@ def test_flows(tester):
     expected = tester.expected_pass_order
     observed = tester.observed_pass_order
     assert success, f'Tester {i} fails: expected ({expected}), observed ({observed})'
+
+
+
+
+def test_update_dynamic_flow():
+    dynamic_flow = hls4ml.model.flow.register_flow('TestDynamicFlowUpdate', lambda: ['A', 'B'])
+    hls4ml.model.flow.update_flow(dynamic_flow, add_optimizers=['C'], remove_optimizers=['A'])
+    assert set(hls4ml.model.flow.get_flow(dynamic_flow).optimizers) == {'B', 'C'}

From 691f5fa169e0dab546b8536973a51b1612d75747 Mon Sep 17 00:00:00 2001
From: "pre-commit-ci[bot]"
 <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Date: Tue, 26 May 2026 05:11:09 +0000
Subject: [PATCH 3/3] [pre-commit.ci] auto fixes from pre-commit hooks

---
 test/pytest/test_flows.py | 2 --
 1 file changed, 2 deletions(-)

diff --git a/test/pytest/test_flows.py b/test/pytest/test_flows.py
index bc1726abbf..297547e0e3 100644
--- a/test/pytest/test_flows.py
+++ b/test/pytest/test_flows.py
@@ -121,8 +121,6 @@ def test_flows(tester):
     assert success, f'Tester {i} fails: expected ({expected}), observed ({observed})'
 
 
-
-
 def test_update_dynamic_flow():
     dynamic_flow = hls4ml.model.flow.register_flow('TestDynamicFlowUpdate', lambda: ['A', 'B'])
     hls4ml.model.flow.update_flow(dynamic_flow, add_optimizers=['C'], remove_optimizers=['A'])