help_cog.py

from discord.ext import commands

class help_cog(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.help_message = """
```
General commands:
    .help       [h]                 - displays all the available commands
    .play       [p] {keyword|url}   - finds the song on youtube and plays it in your current channel.
    .lyrics     [ly]                - finds the song lyrics using spotdl inner modules
    .queue      [q]                 - displays the current music queue
    .skip       [s]                 - skips the current song being played
    .clear      [c]                 - Stops the music and clears the queue
    .disconnect [dc]                - Disconnected the bot from the voice channel
    .pause      [pa]                - pauses the current song being played or resumes if already paused
    .resume     [r]                 - resumes playing the current song
    .loop       [l]                 - loops the current song forever
    .speed      {0.5>float<100.0}   - changes the speed of the audio
    .guild_opts [g]                 - prints Debug statements relative to each guild
```
"""
        self.text_channel_list = []

    #some debug info so that we know the bot has started    
    @commands.Cog.listener()
    async def on_ready(self):
        for guild in self.bot.guilds:
            for channel in guild.text_channels:
                self.text_channel_list.append(channel)

        await self.send_to_all(self.help_message)        

    @commands.command(name="help",aliases=["h"], help="Displays all the available commands")
    async def help(self, ctx):
        await ctx.send(self.help_message)

    async def send_to_all(self, msg):
        for text_channel in self.text_channel_list:
            await text_channel.send(msg)