diff --git a/tests/model/test_config.py b/tests/model/test_config.py
index 93f6f4a..5789660 100644
--- a/tests/model/test_config.py
+++ b/tests/model/test_config.py
@@ -1,9 +1,9 @@
 import os
 import tempfile
 import pytest
-import torch.nn as nn
 from aiia import AIIAConfig
 
+
 def test_aiia_config_initialization():
     config = AIIAConfig()
     assert config.model_type == "AIIA"
@@ -12,7 +12,7 @@ def test_aiia_config_initialization():
     assert config.hidden_size == 512
     assert config.num_hidden_layers == 12
     assert config.num_channels == 3
-    assert config.learning_rate == 5e-5
+
 
 def test_aiia_config_custom_initialization():
     config = AIIAConfig(
@@ -21,8 +21,7 @@ def test_aiia_config_custom_initialization():
         activation_function="ReLU",
         hidden_size=1024,
         num_hidden_layers=8,
-        num_channels=1,
-        learning_rate=1e-4
+        num_channels=1
     )
     assert config.model_type == "CustomModel"
     assert config.kernel_size == 5
@@ -30,19 +29,20 @@ def test_aiia_config_custom_initialization():
     assert config.hidden_size == 1024
     assert config.num_hidden_layers == 8
     assert config.num_channels == 1
-    assert config.learning_rate == 1e-4
+
 
 def test_aiia_config_invalid_activation_function():
     with pytest.raises(ValueError):
         AIIAConfig(activation_function="InvalidFunction")
 
+
 def test_aiia_config_to_dict():
     config = AIIAConfig()
     config_dict = config.to_dict()
     assert isinstance(config_dict, dict)
-    assert config_dict["model_type"] == "AIIA"
     assert config_dict["kernel_size"] == 3
 
+
 def test_aiia_config_save_pretrained_and_from_pretrained():
     with tempfile.TemporaryDirectory() as tmpdir:
         config = AIIAConfig(model_type="TempModel")
@@ -54,6 +54,7 @@ def test_aiia_config_save_pretrained_and_from_pretrained():
         assert loaded_config.kernel_size == 3
         assert loaded_config.activation_function == "GELU"
 
+
 def test_aiia_config_save_pretrained_and_load_with_custom_attributes():
     with tempfile.TemporaryDirectory() as tmpdir:
         config = AIIAConfig(model_type="TempModel", custom_attr="value")
@@ -64,6 +65,7 @@ def test_aiia_config_save_pretrained_and_load_with_custom_attributes():
         assert loaded_config.model_type == "TempModel"
         assert loaded_config.custom_attr == "value"
 
+
 def test_aiia_config_save_pretrained_and_load_with_nested_attributes():
     with tempfile.TemporaryDirectory() as tmpdir:
         config = AIIAConfig(model_type="TempModel", nested={"key": "value"})
@@ -72,4 +74,4 @@ def test_aiia_config_save_pretrained_and_load_with_nested_attributes():
 
         loaded_config = AIIAConfig.from_pretrained(save_pretrained_path)
         assert loaded_config.model_type == "TempModel"
-        assert loaded_config.nested == {"key": "value"}
+        assert loaded_config.nested == {"key": "value"}
\ No newline at end of file