some further cleanup and optim

ormar/relations/__init__.py

@@ -1,9 +1,7 @@
 from ormar.relations.alias_manager import AliasManager
 from ormar.relations.relation import Relation, RelationType
 from ormar.relations.relation_manager import RelationsManager
-from ormar.relations.utils import (
-    get_relations_sides_and_names,
-)
+from ormar.relations.utils import get_relations_sides_and_names
 
 __all__ = [
     "AliasManager",

ormar/relations/relation_manager.py

@@ -5,9 +5,7 @@ from ormar.fields import BaseField
 from ormar.fields.foreign_key import ForeignKeyField
 from ormar.fields.many_to_many import ManyToManyField
 from ormar.relations.relation import Relation, RelationType
-from ormar.relations.utils import (
-    get_relations_sides_and_names,
-)
+from ormar.relations.utils import get_relations_sides_and_names
 
 if TYPE_CHECKING:  # pragma no cover
     from ormar import Model

ormar/relations/utils.py

@@ -9,11 +9,11 @@ if TYPE_CHECKING:  # pragma no cover
 
 
 def get_relations_sides_and_names(
-        to_field: Type[BaseField],
-        parent: "Model",
-        child: "Model",
-        child_name: str,
-        virtual: bool,
+    to_field: Type[BaseField],
+    parent: "Model",
+    child: "Model",
+    child_name: str,
+    virtual: bool,
 ) -> Tuple["Model", "Model", str, str]:
     to_name = to_field.name
     if issubclass(to_field, ManyToManyField):