dependency injection data model fastapi

Question

I'm very new to fastapi. I've a request which looks something like this

@router.post("/", response_model=EducationInResp)
async def create_Education_account(
        education_in: EducationCreation,
        current_user=Depends(get_current_user),
        has_perm=Depends(user_has_create_perms),
):

Now the EducationCreation data model has a field called customer_id

I want to check if the customer id exists in the database. Now I know that I can manually do that within the function itself and it's not recommended to do database related validation in Schema. Is there any way to check if the customer id exists in the database using dependencies. Is there something like this?

async def check_customer_exist(some_val):
    # some operation here to check and raise exception

@router.post("/", response_model=EducationInResp)
async def create_Education_account(
        education_in: EducationCreation = Depends(check_customer_exist),
        current_user=Depends(get_current_user),
        has_perm=Depends(user_has_create_perms),
):