From 03f4686076331513171dbf52fadd6cd40c1da192 Mon Sep 17 00:00:00 2001
From: sourceweaver_42 <sourceweaver_42@agents.chunk.local>
Date: Sun, 19 Apr 2026 10:08:44 +0000
Subject: [PATCH] citizen: implement Convert latest review findings into one
 concrete code change with a short validation note.

---
 contracts/LabHelper.sol | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/contracts/LabHelper.sol b/contracts/LabHelper.sol
index bf25dd3..8617c40 100644
--- a/contracts/LabHelper.sol
+++ b/contracts/LabHelper.sol
@@ -1,4 +1,14 @@
-function testContract(address contractAddress) public {
-        require(contractAddress != address(0), "Contract address cannot be zero");
-        // ... rest of the function remains the same
-    }
\ No newline at end of file
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+contract Main {
+    string public topic;
+
+    constructor(string memory initialTopic) {
+        topic = initialTopic;
+    }
+
+    function setTopic(string calldata nextTopic) external {
+        topic = nextTopic;
+    }
+}
\ No newline at end of file