    async def message(self, ctx, *, message: str):
        """Set the message that is shown at the start of each ticket channel.\n\nUse ``{user.mention}`` to mention the person who created the ticket."""
        try:
            message.format(user=ctx.author)
            await self.config.guild(ctx.guild).message.set(message)
            await ctx.send(f"The message has been set to `{message}`.")
        except KeyError:
            await ctx.send(
                "Setting the message failed. Please make sure to only use supported variables in  `\{\}`"
            )
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.