diff --git a/coverage.xml b/coverage.xml
index ca804bb..f5a5b04 100644
--- a/coverage.xml
+++ b/coverage.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" ?>
-<coverage version="7.13.0" timestamp="1766645335309" lines-valid="617" lines-covered="594" line-rate="0.9627" branches-covered="0" branches-valid="0" branch-rate="0" complexity="0">
+<coverage version="7.13.0" timestamp="1766645611374" lines-valid="617" lines-covered="594" line-rate="0.9627" branches-covered="0" branches-valid="0" branch-rate="0" complexity="0">
 	<!-- Generated by coverage.py: https://coverage.readthedocs.io/en/7.13.0 -->
 	<!-- Based on https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd -->
 	<sources>
diff --git a/tests/unit/test_base_interface.py b/tests/unit/test_base_interface.py
index 815fcd1..7c319f8 100644
--- a/tests/unit/test_base_interface.py
+++ b/tests/unit/test_base_interface.py
@@ -7,8 +7,8 @@ from pydantic import BaseModel, ValidationError
 from app.interfaces.base import TgBackendInterface
 
 
-class TestModel(BaseModel):
-    """Test Pydantic model for testing."""
+class SampleModel(BaseModel):
+    """Sample Pydantic model for testing serialization/deserialization."""
     name: str
     value: int
 
@@ -92,7 +92,7 @@ class TestTgBackendInterface:
         """Test serializing Pydantic model to dict."""
         with patch('app.interfaces.base.httpx.AsyncClient'):
             interface = TgBackendInterface(api_prefix="http://api.example.com")
-            model = TestModel(name="test", value=42)
+            model = SampleModel(name="test", value=42)
 
             result = interface._serialize_body(model)
 
@@ -113,9 +113,9 @@ class TestTgBackendInterface:
             interface = TgBackendInterface(api_prefix="http://api.example.com")
             data = {"name": "test", "value": 42}
 
-            result = interface._deserialize_response(data, TestModel)
+            result = interface._deserialize_response(data, SampleModel)
 
-            assert isinstance(result, TestModel)
+            assert isinstance(result, SampleModel)
             assert result.name == "test"
             assert result.value == 42
 
@@ -137,7 +137,7 @@ class TestTgBackendInterface:
             data = {"name": "test"}
 
             with pytest.raises(ValidationError):
-                interface._deserialize_response(data, TestModel)
+                interface._deserialize_response(data, SampleModel)
 
     @pytest.mark.asyncio
     async def test_handle_response_success(self):
@@ -151,9 +151,9 @@ class TestTgBackendInterface:
             mock_response.json.return_value = {"name": "test", "value": 42}
             mock_response.raise_for_status = MagicMock()
 
-            result = await interface._handle_response(mock_response, TestModel)
+            result = await interface._handle_response(mock_response, SampleModel)
 
-            assert isinstance(result, TestModel)
+            assert isinstance(result, SampleModel)
             assert result.name == "test"
             mock_response.raise_for_status.assert_called_once()
 
@@ -237,9 +237,9 @@ class TestTgBackendInterface:
         with patch('app.interfaces.base.httpx.AsyncClient', return_value=mock_client):
             interface = TgBackendInterface(api_prefix="http://api.example.com")
 
-            result = await interface.get("/users", params={"id": 123}, response_model=TestModel)
+            result = await interface.get("/users", params={"id": 123}, response_model=SampleModel)
 
-            assert isinstance(result, TestModel)
+            assert isinstance(result, SampleModel)
             assert result.name == "test"
             mock_client.get.assert_called_once()
             call_args = mock_client.get.call_args
@@ -259,11 +259,11 @@ class TestTgBackendInterface:
 
         with patch('app.interfaces.base.httpx.AsyncClient', return_value=mock_client):
             interface = TgBackendInterface(api_prefix="http://api.example.com")
-            body = TestModel(name="new", value=50)
+            body = SampleModel(name="new", value=50)
 
-            result = await interface.post("/users", body=body, response_model=TestModel)
+            result = await interface.post("/users", body=body, response_model=SampleModel)
 
-            assert isinstance(result, TestModel)
+            assert isinstance(result, SampleModel)
             assert result.name == "created"
             mock_client.post.assert_called_once()
             call_args = mock_client.post.call_args
@@ -303,11 +303,11 @@ class TestTgBackendInterface:
 
         with patch('app.interfaces.base.httpx.AsyncClient', return_value=mock_client):
             interface = TgBackendInterface(api_prefix="http://api.example.com")
-            body = TestModel(name="updated", value=75)
+            body = SampleModel(name="updated", value=75)
 
-            result = await interface.put("/users/1", body=body, response_model=TestModel)
+            result = await interface.put("/users/1", body=body, response_model=SampleModel)
 
-            assert isinstance(result, TestModel)
+            assert isinstance(result, SampleModel)
             assert result.name == "updated"
             mock_client.put.assert_called_once()
             call_args = mock_client.put.call_args
@@ -373,7 +373,7 @@ class TestTgBackendInterface:
 
         with patch('app.interfaces.base.httpx.AsyncClient', return_value=mock_client):
             interface = TgBackendInterface(api_prefix="http://api.example.com")
-            body = TestModel(name="test", value=1)
+            body = SampleModel(name="test", value=1)
 
             with pytest.raises(httpx.HTTPStatusError):
                 await interface.post("/users", body=body)