如何在GNOME中以编程方式设置自定义文件夹图标？

import gi
gi.require_version('Gio', '2.0')
from gi.repository import Gio

def set_folder_icon(folder_path, icon_name):
    file = Gio.File.new_for_path(folder_path)
    info = file.query_info("standard::icon", 0, None)
    icon = info.get_icon()

    if icon:
        icon.set_names([icon_name])
        file.set_attribute_string("metadata::custom-icon", icon.to_string())

folder_path = "/path/to/your/folder"
icon_name = "folder-custom"

set_folder_icon(folder_path, icon_name)