Hola, soy nuevo en la codificación de Python con discordia y he intentado hacer un comando que le diga al usuario si es administrador o no, pero bueno ... no funciona en lo más mínimo

    @client.command(name="whoami",description="who are you?")
async def whoami():
    if message.author == client.user:
        return
    if context.message.author.mention == discord.Permissions.administrator:
        msg = "You're an admin {0.author.mention}".format(message)  
        await client.send_message(message.channel, msg)
    else:
        msg = "You're an average joe {0.author.mention}".format(message)  
        await client.send_message(message.channel, msg)

Luego obtengo esto cuando intento escribir whoami

Ignoring exception in command whoami
Traceback (most recent call last):
  File "/home/python/.local/lib/python3.6/site-packages/discord/ext/commands/core.py", line 50, in wrapped
    ret = yield from coro(*args, **kwargs)
  File "<stdin>", line 3, in whoami
NameError: name 'message' is not defined

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/python/.local/lib/python3.6/site-packages/discord/ext/commands/bot.py", line 846, in process_commands
    yield from command.invoke(ctx)
  File "/home/python/.local/lib/python3.6/site-packages/discord/ext/commands/core.py", line 374, in invoke
    yield from injected(*ctx.args, **ctx.kwargs)
  File "/home/python/.local/lib/python3.6/site-packages/discord/ext/commands/core.py", line 54, in wrapped
    raise CommandInvokeError(e) from e
discord.ext.commands.errors.CommandInvokeError: Command raised an exception: NameError: name 'message' is not defined