diff --git a/src/config/loader.py b/src/config/loader.py
index 9d172a0..e453daa 100644
--- a/src/config/loader.py
+++ b/src/config/loader.py
@@ -1,13 +1,9 @@
-"""Configuration loader module."""
-
+"""Configuration loader."""
 from pathlib import Path
 from typing import List, Optional
-
 import yaml
-
 from ..models import Rule
 
-
 class ConfigLoader:
     def __init__(self):
         self._config_paths = [
@@ -16,12 +12,12 @@ class ConfigLoader:
         ]
         self._default_config_path = Path(__file__).parent.parent.parent / "config" / "default_rules.yaml"
 
-    def load_default_rules(self) -> List[Rule]:
+    def load_default_rules(self):
         if self._default_config_path.exists():
             return self.load_from_file(self._default_config_path)
         return []
 
-    def load_from_file(self, path: Path) -> List[Rule]:
+    def load_from_file(self, path):
         rules = []
         try:
             with open(path, "r") as f:
@@ -34,14 +30,14 @@ class ConfigLoader:
             raise ValueError(f"Invalid YAML syntax: {e}")
         return rules
 
-    def load_user_rules(self) -> List[Rule]:
+    def load_user_rules(self):
         rules = []
         for config_path in self._config_paths:
             if config_path.exists():
                 rules.extend(self.load_from_file(config_path))
         return rules
 
-    def load_merged_rules(self, custom_rules: Optional[List[Rule]] = None) -> List[Rule]:
+    def load_merged_rules(self, custom_rules=None):
         rules = self.load_default_rules()
         user_rules = self.load_user_rules()
         rule_dict = {r.id: r for r in rules}
@@ -49,8 +45,7 @@ class ConfigLoader:
             rule_dict[r.id] = r
         return list(rule_dict.values())
 
-
-def load_rules(config_path: Optional[str] = None) -> List[Rule]:
+def load_rules(config_path=None):
     loader = ConfigLoader()
     if config_path:
         return loader.load_from_file(Path(config_path))