Not able to map data from sql join to pydantic models in fastapi - fastapi

Question

I am trying to map data from sql join of two tables to pydantic model, but getting null value
models.py
class Countries(BaseModel):
country_name: str = Field(None, alias="country_name")
class Tools(BaseModel):
tool_name:str = Field(None, alias="tool_name")
tool_id: int = Field(None, alias="tool_id")
class ShowData(BaseModel):
countries:Countries = Field(None, alias="countries")
tools:Tools = Field(None, alias="tools")
class Config:
orm_mode = True
repository.py
def test(db: Session = Depends(get_db)):
statement = select(Tool.tool_name, UserCountryToolAccess.tool_id, Country.country_name).where(Tool.tool_id == UserCountryToolAccess.tool_id, Country.country_id == UserCountryToolAccess.country_id)
results = db.exec(statement).fetchall()
print(results)
return results
This is the data I am receiving in repository.py [('pdf compressor', 1, 'United States of America'), ('image resizer', 4, 'United Kingdom'), ('cost budgeting', 2, 'Russia'), ('scenario planner', 5, 'Germany'), ('cropping image', 1, 'United States of America'), ('leave dashboard', 3, 'Russia')]
test.py
#router.get("/test",tags=['test'],response_model=schemas.ShowData)
def get_user(db: Session = Depends(get_db)):
result = repository.test(db)
return result
I need data in the below json structure
{
"countries": {
"country_name": "India"
},
"tools": {
"tool_id": 1,
"tool_name": "pdf compressor"
}
}