from nonebot import on_command, CommandSession, permission as perm
from nonebot.message import unescape


@on_command('echo')
async def echo(session: CommandSession):
    await session.send(session.get_optional('message') or session.current_arg)


@on_command('say', permission=perm.SUPERUSER)
async def say(session: CommandSession):
    await session.send(
        unescape(session.get_optional('message') or session.current_arg))