diff --git a/generator/src/telethon_generator/_impl/codegen/generator.py b/generator/src/telethon_generator/_impl/codegen/generator.py
index ed8d49d3..84c2c51a 100644
--- a/generator/src/telethon_generator/_impl/codegen/generator.py
+++ b/generator/src/telethon_generator/_impl/codegen/generator.py
@@ -6,8 +6,9 @@ from .serde.common import (
     inner_type_fmt,
     is_computed,
     param_type_fmt,
+    sanitize_name,
     to_class_name,
-    to_method_name, sanitize_name,
+    to_method_name,
 )
 from .serde.deserialization import (
     function_deserializer_fmt,
diff --git a/generator/src/telethon_generator/_impl/codegen/serde/serialization.py b/generator/src/telethon_generator/_impl/codegen/serde/serialization.py
index 361f96a3..34e4f60e 100644
--- a/generator/src/telethon_generator/_impl/codegen/serde/serialization.py
+++ b/generator/src/telethon_generator/_impl/codegen/serde/serialization.py
@@ -15,7 +15,9 @@ def param_value_expr(param: Parameter) -> str:
     return f"{pre}{mid}{suf}"
 
 
-def generate_buffer_append(writer: SourceWriter, buffer: str, name: str, ty: Type) -> None:
+def generate_buffer_append(
+    writer: SourceWriter, buffer: str, name: str, ty: Type
+) -> None:
     sanitized_name = sanitize_name(name)
 
     if is_trivial(NormalParameter(ty=ty, flag=None)):
@@ -60,7 +62,9 @@ def generate_normal_param_write(
 
     if param.ty.generic_arg:
         if param.ty.name not in ("Vector", "vector"):
-            raise ValueError("generic_arg deserialization for non-vectors is not supported")
+            raise ValueError(
+                "generic_arg deserialization for non-vectors is not supported"
+            )
 
         if param.ty.bare:
             writer.write(f"{buffer} += struct.pack('<i', len({sanitized_name}))")
@@ -161,5 +165,7 @@ def generate_function(writer: SourceWriter, defn: Definition) -> None:
             for param in iter:
                 if not isinstance(param.ty, NormalParameter):
                     raise RuntimeError("FlagsParameter should be considered trivial")
-                generate_normal_param_write(writer, tmp_names, "_buffer", param.name, param.ty)
+                generate_normal_param_write(
+                    writer, tmp_names, "_buffer", param.name, param.ty
+                )
     writer.write("return Request(b'' + _buffer)")
diff --git a/generator/tests/generator_test.py b/generator/tests/generator_test.py
index eef606c0..38267dee 100644
--- a/generator/tests/generator_test.py
+++ b/generator/tests/generator_test.py
@@ -14,7 +14,9 @@ def gen_py_code(
     functiondefs: Optional[list[Definition]] = None,
 ) -> str:
     fs = FakeFs()
-    generate(fs, ParsedTl(layer=0, typedefs=typedefs or [], functiondefs=functiondefs or []))
+    generate(
+        fs, ParsedTl(layer=0, typedefs=typedefs or [], functiondefs=functiondefs or [])
+    )
     generated = bytearray()
     for path, data in fs._files.items():
         if path.stem not in ("__init__", "layer"):
@@ -25,7 +27,9 @@ def gen_py_code(
 
 
 def test_generic_functions_use_bytes_parameters() -> None:
-    definitions = get_definitions("invokeWithLayer#da9b0d0d {X:Type} layer:int query:!X = X;")
+    definitions = get_definitions(
+        "invokeWithLayer#da9b0d0d {X:Type} layer:int query:!X = X;"
+    )
     result = gen_py_code(functiondefs=definitions)
     assert "invoke_with_layer" in result
     assert "query: _bytes" in result