vicho_useless.py

import os
import bpy

class VichoToolsAddonProperties(bpy.types.AddonPreferences):
    bl_idname = __package__.split(".")[0]

    folders2ytd_path: bpy.props.StringProperty(
        name="Folder2YTD path", subtype='DIR_PATH')

    def draw(self, context):
        layout = self.layout
        layout.prop(self, "folders2ytd_path")


def get_addon_preferences(context: bpy.types.Context) -> VichoToolsAddonProperties:
    return context.preferences.addons[__package__.split(".")[0]].preferences