Fix issue #5000: Possible issues with breakpoint debuggin (enhancement)

Author: Xiao Duan

feature_5000.py

@@ -0,0 +1,27 @@
+# Feature Enhancement for Issue #5000
+from typing import Dict, List, Optional
+from dataclasses import dataclass
+
+@dataclass
+class ConfigManager:
+    config: Dict[str, any] = None
+    
+    def __post_init__(self):
+        if self.config is None:
+            self.config = {}
+    
+    def get(self, key: str, default: Optional[any] = None) -> any:
+        return self.config.get(key, default)
+    
+    def set(self, key: str, value: any) -> None:
+        self.config[key] = value
+    
+    def save(self) -> Dict[str, any]:
+        return self.config.copy()
+
+# 测试
+config = ConfigManager()
+config.set("test", "value")
+assert config.get("test") == "value"
+assert config.save()["test"] == "value"
+print("Feature enhancement tests passed!")