hotdog/hotdog/command/README.md

A plugin is any module that defines an init function that takes a Bot instance as first argument.
The function can then register any message handlers or timers on the bot, or add any dependencies it requires.

Example:

from ..functions import reply

HELP = """Responds to your hello.
!hello
"""

def init(bot):
    bot.on_command("hello", reply_world)

async def reply_world(message):
    await reply(message, "world")