async def METHOD_NAME(app, session):
    """Assert that an AR filling can be applied to the model correctly."""
    from legal_api.models import Filing
    from entity_pay.worker import get_filing_by_payment_id, process_payment
    # vars
    payment_id = str(random.SystemRandom().getrandbits(0x58))
    identifier = 'CP1234567'
    # setup
    business = create_business(identifier)
    business_id = business.id
    create_filing(payment_id, None, business.id)
    payment_token = {'paymentToken': {'id': payment_id, 'statusCode': Filing.Status.COMPLETED.value}}
    # TEST
    await process_payment(payment_token, app)
    # Get modified data
    filing = get_filing_by_payment_id(int(payment_id))
    # check it out
    assert filing.business_id == business_id
    assert filing.status == Filing.Status.PAID.value