無視礦工，以太坊的倫敦硬分叉

@dataclass
class TransactionLegacy:
	signer_nonce: int = 0
	gas_price: int = 0
	gas_limit: int = 0
	destination: int = 0
	amount: int = 0
	payload: bytes = bytes()
	v: int = 0
	r: int = 0
	s: int = 0

@dataclass
class Transaction1559Payload:
	chain_id: int = 0
	signer_nonce: int = 0
	max_priority_fee_per_gas: int = 0
	max_fee_per_gas: int = 0
	gas_limit: int = 0
	destination: int = 0
	amount: int = 0
	payload: bytes = bytes()
	access_list: List[Tuple[int, List[int]]] = field(default_factory=list)
	signature_y_parity: bool = False
	signature_r: int = 0
	signature_s: int = 0


---

def normalize_transaction(self, transaction: Transaction, signer_address: int) -> NormalizedTransaction:
		# legacy transactions
		if isinstance(transaction, TransactionLegacy):
			return NormalizedTransaction(
				signer_address = signer_address,
				signer_nonce = transaction.signer_nonce,
				gas_limit = transaction.gas_limit,
				max_priority_fee_per_gas = transaction.gas_price,
				max_fee_per_gas = transaction.gas_price,
				destination = transaction.destination,
				amount = transaction.amount,
				payload = transaction.payload,
				access_list = [],
			)
		# 1559 transactions
		elif isinstance(transaction, Transaction1559Envelope):
			return NormalizedTransaction(
				signer_address = signer_address,
				signer_nonce = transaction.payload.signer_nonce,
				gas_limit = transaction.payload.gas_limit,
				max_priority_fee_per_gas = transaction.payload.max_priority_fee_per_gas,
				max_fee_per_gas = transaction.payload.max_fee_per_gas,
				destination = transaction.payload.destination,
				amount = transaction.payload.amount,
				payload = transaction.payload.payload,
				access_list = transaction.payload.access_list,
			)
		else:
			raise Exception('invalid transaction: unexpected number of items')

for unnormalized_transaction in transactions:
			# Note: this validates transaction signature and chain ID which must happen before we normalize below since normalized transactions don't include signature or chain ID
			signer_address = self.validate_and_recover_signer_address(unnormalized_transaction)
			transaction = self.normalize_transaction(unnormalized_transaction, signer_address)

			signer = self.account(signer_address)

			signer.balance -= transaction.amount
			assert signer.balance >= 0, 'invalid transaction: signer does not have enough ETH to cover attached value'

			# ensure that the user was willing to at least pay the base fee
			assert transaction.max_fee_per_gas >= block.base_fee_per_gas

			# The first two of these four rules are implicit due to the next two rules
			# Prevent impossibly large numbers
			assert transaction.max_fee_per_gas < 2**256
			# Prevent impossibly large numbers
			assert transaction.max_priority_fee_per_gas < 2**256
			# The total must be the larger of the two
			assert transaction.max_fee_per_gas >= transaction.max_priority_fee_per_gas
			# the signer must be able to afford the transaction
			assert signer.balance >= transaction.gas_limit * transaction.max_fee_per_gas

			# priority fee is capped because the base fee is filled first
			priority_fee_per_gas = min(transaction.max_priority_fee_per_gas, transaction.max_fee_per_gas - block.base_fee_per_gas)
			# signer pays both the priority fee and the base fee
			effective_gas_price = priority_fee_per_gas + block.base_fee_per_gas
			signer.balance -= transaction.gas_limit * effective_gas_price
			assert signer.balance >= 0, 'invalid transaction: signer does not have enough ETH to cover gas'
			gas_used = self.execute_transaction(transaction, effective_gas_price)
			gas_refund = transaction.gas_limit - gas_used
			cumulative_transaction_gas_used += gas_used
			# signer gets refunded for unused gas
			signer.balance += gas_refund * effective_gas_price
			# miner only receives the priority fee; note that the base fee is not given to anyone (it is burned)
			self.account(block.author).balance += gas_used * priority_fee_per_gas