from typing import Optional

from nextcord import Intents, Interaction, Member, Permissions
from nextcord.ext.commands import Bot

bot = Bot(
    intents=Intents(guilds=True, message_content=True, messages=True),
    default_guild_ids=[...],
)

@bot.slash_command(default_member_permissions=Permissions(manage_events=True))
async def perms(inter: Interaction, user: Optional[Member]):
    assert inter.user is not None
    assert isinstance(inter.user, Member)
    perms = inter.channel.permissions_for(user or inter.user)
    return await inter.send(f"ev: {perms.create_events}\nexp: {perms.create_expressions}")

bot.run(...)