refactor: reformat

backend/app/schemas/newsletters.py

@@ -5,16 +5,19 @@ from pydantic import BaseModel, ConfigDict
 
 class SenderBase(BaseModel):
     """Base schema for a sender."""
+
     email: str
 
 
 class SenderCreate(SenderBase):
     """Schema for creating a new sender."""
+
     pass
 
 
 class Sender(SenderBase):
     """Schema for retrieving a sender with its ID and newsletter ID."""
+
     id: int
     newsletter_id: int
 
@@ -23,21 +26,25 @@ class Sender(SenderBase):
 
 class NewsletterBase(BaseModel):
     """Base schema for a newsletter."""
+
     name: str
 
 
 class NewsletterCreate(NewsletterBase):
     """Schema for creating a new newsletter."""
+
     sender_emails: List[str]
 
 
 class NewsletterUpdate(NewsletterBase):
     """Schema for updating an existing newsletter."""
+
     sender_emails: List[str]
 
 
 class Newsletter(NewsletterBase):
     """Schema for retrieving a newsletter with its ID, active status, senders, and entries count."""
+
     id: int
     is_active: bool
     senders: List[Sender] = []