如何在openpyxl中关闭(或隐藏)组合图上的秒y轴刻度？

from openpyxl import load_workbook

# 打开Excel文件
workbook = load_workbook('example.xlsx')

# 选择要操作的工作表
worksheet = workbook['Sheet1']

from openpyxl.drawing.image import Image

# 遍历所有图表对象
for chart in worksheet._charts:
    # 判断图表类型是否为组合图
    if isinstance(chart, Image):
        # 获取次Y轴对象
        secondary_axis = chart.secondary_axes[0]

# 设置次Y轴刻度属性为隐藏
secondary_axis.tickLblPos = 'none'

# 保存并关闭Excel文件
workbook.save('example.xlsx')
workbook.close()