discord.ext.commands.errors.MissingRequiredArgument: user is a required argument that is missing

I’ve only seen no solutions for this, but im trying to check if the role of the user that sent the message is a DJ, if so then skip = True however i keep getting this error message

    async def skip(self, ctx, user: discord.Member):
        role = discord.utils.find(lambda r: r.name == 'DJ', ctx.message.guild.roles)

        if role in user.roles:
            skip = True

>Solution :

If you want to access the user that invoked the command use ctx.author:

    async def skip(self, ctx):
        role = discord.utils.find(lambda r: r.name == 'DJ', ctx.message.guild.roles)

        if role in ctx.author.roles:
            skip = True