FastAPI subclass asks for required field from inherited class

Question

I tried some stuffs but without success In my project I have:

• a model Hospital and a model User (I keep in distinct files)
• a schema Hospital and shema User (I keep in distinct files too)

The relationship is one to one.

I need add to my response model Hospital a boolean field from User (the field is accept_terms)

So I created another schema in User file called UserAcceptTerms that inherit from User but when I run it show me a error on terminal asking for fields required from User schema.

In another way for solution I put my subclass to inherit from BaseModel and I set for a boolean field a defalut value = False. It's run but the value is wrong for my test that I hope a True value like response.

My Code:

#Schema for Hospital
class HospitalBase(BaseModel):
    code: str
    scode: str
    name: str
    type: str
    email1: str = None

class Hospital(HospitalBase):
    id: int
    created_at: datetime
    updated_at: datetime
    user_id: int            #foreignkey from User
    deleted: bool = False
    first_access: bool = False
    
    class Config:
        orm_mode = True
        
class HospitalUser(UserAcceptTerms,Hospital): #Here my schema that I'll use like a response_model
    pass    

    class Config:
        orm_mode = True
        

#Schema for User
class UserBase(BaseModel):
    name: str
    email: str = None
    login: str = None
    is_superuser: bool = False
    is_staff: bool = False
    
class User(UserBase):
    id: int
    created_at: datetime
    updated_at: datetime
    is_superuser: bool
    is_staff: bool
    deleted: bool = False
    accept_terms: bool = False

    class Config:
        orm_mode = True

#Here using User schema --> problem with required field
class UserAcceptTerms(User):
    accept_terms: bool = False
       
    class config:
        orm_mode = True

#Here using BaseModel --> problem don't show a corret value from Database
class UserAcceptTerms(BaseModel):
    accept_terms: bool = False
       
    class config:
        orm_mode = True
        
Response body       
[
  {
    "code": "3",
    "scode": "XXX0003",
    "name": "Hospital XXX",
    "type": "H",
    "email1": "test@test.com",
    "id": 1,
    "created_at": "2021-12-22T14:28:58.670072",
    "updated_at": "2022-08-30T13:06:40.752472",
    "user_id": 4,
    "deleted": false,
    "first_access": true,
    "accept_terms": false  #This value is wrong because is TRUE in database
  },

Does someone have any idea for help me? Thanks :)