ethrpc2

type Client interface {
	// EstimateGas tries to estimate the gas needed to execute a specific transaction based on
	// the current pending state of the backend blockchain. There is no guarantee that this is
	// the true gas limit requirement as other transactions may be added or removed by miners,
	// but it should provide a basis for setting a reasonable default.
	EstimateGas(ctx context.Context, msg geth.CallMsg) (uint64, error)
	// NetworkID returns the network ID (also known as the chain ID) for this chain.
	NetworkID(ctx context.Context) (*big.Int, error)
	// NonceAt returns the account nonce of the given account.
	// The block number can be nil, in which case the nonce is taken from the latest known block.
	NonceAt(ctx context.Context, account common.Address, blockNumber *big.Int) (uint64, error)
	// SendTransaction injects a signed transaction into the pending pool for execution.
	//
	// If the transaction was a contract creation use the TransactionReceipt method to get the
	// contract address after the transaction has been mined.
	SendTransaction(ctx context.Context, tx *types.Transaction) error
	// SuggestGasPrice retrieves the currently suggested gas price to allow a timely
	// execution of a transaction.
	SuggestGasPrice(ctx context.Context) (*big.Int, error)
}

type EthRPC2 struct {
	// contains filtered or unexported fields
}

type Options struct {
	Tx      *types.Transaction
	ChainID *big.Int
}