def METHOD_NAME(self):
    self.session = SessionLocal()
    self.w3 = Web3(HTTPProvider())
    self.gas_payer = self.w3.eth.account.from_key(DEFAULT_GAS_PAYER_PRIV)
    self.w3.middleware_onion.add(
        construct_sign_and_send_raw_middleware(self.gas_payer),
        "construct_sign_and_send_raw_middleware",
    )
    self.w3.eth.default_account = self.gas_payer.address