Make pet and guest field as optional

app/models/appointment.py

@@ -65,8 +65,8 @@ class Appointment(BaseModel):
     appointment_date: Optional[date] = Field(None, description="Appointment date (YYYY-MM-DD)")
     appointment_time: str = Field(..., pattern=r"^\d{2}:\d{2}$", description="Appointment time in HH:MM format")
     associates: List[AssociateDetails]  # ✅ Using `AssociateDetails` model
-    guest: List[Guestdetails]
-    pet: List[Petdetails]
+    guest: Optional[List[Guestdetails]] = Field(None, description="Guest details")
+    pet: Optional[List[Petdetails]] = Field(None, description="Pet details")
     status: AppointmentStatus  # ✅ Using Enum
     services: List[ServiceDetails]  # ✅ Using `ServiceDetails` model
     notes: Optional[str] = None

app/models/cart.py

@@ -1,5 +1,5 @@
 from pydantic import BaseModel, Field, validator
-from typing import List, Union
+from typing import List, Union,Optional
 from datetime import timedelta
 
 class Service(BaseModel):
@@ -35,8 +35,8 @@ class AppointmentCart(BaseModel):
     appointment_time: str
     services: List[Service]
     associate: List[Associate]
-    guest: List[Guest]
-    pet: List[Pet]
+    guest: Optional[List[Guest]]=None
+    pet: Optional[List[Pet]]=None
     ttl: Union[int, str] = Field(default="forever")  # Allow integer or "forever"
     business_url:str
     merchant_category:str