从Ifxpy获取最后插入的序列值。有没有IfxPy.get_last_serial_value的文档/代码示例？

import IfxPy
import IfxPyDbi as dbi

# 建立数据库连接
conn = dbi.connect("SERVER=myserver;DATABASE=mydb;HOSTNAME=myhost;PORT=1234;PROTOCOL=onsoctcp;UID=myuser;PWD=mypassword")

# 创建一个游标
cursor = conn.cursor()

# 获取当前序列的值
cursor.execute("SELECT mysequence FROM systables WHERE tabname='mytable'")
current_value = cursor.fetchone()[0]

# 执行插入操作
cursor.execute("INSERT INTO mytable (column1, column2) VALUES (?, ?)", (value1, value2))

# 获取插入后的序列值
cursor.execute("SELECT mysequence FROM systables WHERE tabname='mytable'")
last_inserted_value = cursor.fetchone()[0]

# 对比序列值，判断是否插入成功
if last_inserted_value > current_value:
    print("插入成功！最后插入的序列值为：", last_inserted_value)
else:
    print("插入失败！")

# 关闭游标和数据库连接
cursor.close()
conn.close()