code: async def unignore_all(self, ctx):
          
          channels = [c for c in ctx.message.server.channels if c.type is discord.ChannelType.text]
          await ctx.invoke(self.unignore, *channels)
docs: Unignores all channels in this server from being processed.
  
          To use this command you must have the Manage Channels permission or have the
          Bot Admin role.