[Python] Dependency injection data model in FastAPI

I'm very new to FastAPI. I have 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 is 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),
):

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