In my bot, I have an event for replying to when the bot is mentioned. The issue is, that it replies when u mention the bot through replying to it. How can I fix this? Here's my code:

@commands.Cog.listener()
    async def on_message(self, msg):

                guild = msg.guild

                prefix = get_prefix(self.client, guild)
        
                if msg.author == self.client.user:
                    
                    return
                
                if msg.mention_everyone:
                    
                    return

                if self.client.user.mentioned_in(msg):

                    embed = discord.Embed(description=f"The prefix for this server is `{prefix}`   <:info:857962218150953000>", color=0x505050)

                    await msg.channel.send(embed=embed)