在哪里可以找到ChromeDriver/Selenium的打印首选项的规格？

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options

# 设置 Chrome 选项
chrome_options = Options()
chrome_options.add_experimental_option("prefs", {
    "printing.print_preview_sticky_settings.appState": '{"recentDestinations":[{"id":"Save as PDF","origin":"local","account":""]},"selectedDestinationId":"Save as PDF","version":2}',
    "savefile.default_directory": "/path/to/save/directory"  # 设置保存 PDF 的目录
})

# 启动 ChromeDriver
service = Service('path/to/chromedriver')
driver = webdriver.Chrome(service=service, options=chrome_options)

# 打开网页
driver.get("http://example.com")

# 打印页面
driver.execute_script('window.print();')

# 关闭浏览器
driver.quit()