gas estimation

Accurate gas estimation ensures your transaction won't fail due to an insufficient gas limit.准确的 Gas 估算可确保你的交易不会因为 Gas 上限不足而失败。

Gas estimation libraries simulate the transaction and return the expected gas consumption before the transaction is sent.Gas 估算库会在发送交易之前模拟该交易并返回预期的 Gas 消耗量。