SaveWallPaper

import asyncio
from ferogram import Client, raw

app = Client("my_session", api_id=12345, api_hash="0123456789abcdef0123456789abcdef")

async def main():
    await app.start()
    result = await app.raw.account.SaveWallPaper(
        wallpaper=raw.types.InputWallPaperSlug(slug=''),
        unsave=False,
        settings=raw.types.WallPaperSettings()
    )
    print(result)

asyncio.run(main())