diff --git a/fastapi/_compat/main.py b/fastapi/_compat/main.py
index 4f9c8e10d..659f45fac 100644
--- a/fastapi/_compat/main.py
+++ b/fastapi/_compat/main.py
@@ -238,7 +238,9 @@ def get_compat_model_name_map(fields: List[ModelField]) -> ModelNameMap:
     if len(v1_model_fields) > 0:
         from fastapi._compat import v1
 
-        v1_flat_models = v1.get_flat_models_from_fields(v1_model_fields, known_models=set())
+        v1_flat_models = v1.get_flat_models_from_fields(
+            v1_model_fields, known_models=set()
+        )
         all_flat_models = v1_flat_models
     else:
         all_flat_models = set()
diff --git a/fastapi/_compat/may_v1.py b/fastapi/_compat/may_v1.py
index 5b0bd2445..5c852486a 100644
--- a/fastapi/_compat/may_v1.py
+++ b/fastapi/_compat/may_v1.py
@@ -83,12 +83,16 @@ else:
     from .v1 import BaseConfig as BaseConfig  # type: ignore[assignment]
     from .v1 import BaseModel as BaseModel  # type: ignore[assignment]
     from .v1 import Color as Color  # type: ignore[assignment]
-    from .v1 import CoreSchema as CoreSchema   # type: ignore[assignment]
+    from .v1 import CoreSchema as CoreSchema  # type: ignore[assignment]
     from .v1 import ErrorWrapper as ErrorWrapper  # type: ignore[assignment]
     from .v1 import FieldInfo as FieldInfo  # type: ignore[assignment]
-    from .v1 import GetJsonSchemaHandler as GetJsonSchemaHandler  # type: ignore[assignment]
+    from .v1 import (
+        GetJsonSchemaHandler as GetJsonSchemaHandler,  # type: ignore[assignment]
+    )
     from .v1 import JsonSchemaValue as JsonSchemaValue  # type: ignore[assignment]
-    from .v1 import ModelField  # type: ignore[assignment]
+    from .v1 import (
+        ModelField,  # type: ignore[assignment]
+    )
     from .v1 import NameEmail as NameEmail  # type: ignore[assignment]
     from .v1 import RequiredParam as RequiredParam  # type: ignore[assignment]
     from .v1 import SecretBytes as SecretBytes  # type: ignore[assignment]
@@ -96,6 +100,4 @@ else:
     from .v1 import Undefined as Undefined  # type: ignore[assignment]
     from .v1 import UndefinedType as UndefinedType  # type: ignore[assignment]
     from .v1 import Url as Url  # type: ignore[assignment]
-    from .v1 import get_definitions  # type: ignore[assignment]
     from .v1 import _normalize_errors as _normalize_errors  # type: ignore[assignment]
-    from .v1 import _regenerate_error_with_loc  # type: ignore[assignment]