async def METHOD_NAME(self, ctx: commands.Context, *raw_emoji: str) -> None:
    """Sends a preview of a given Twemoji, specified by codepoint or emoji."""
    if len(raw_emoji) == 0:
        await self.bot.invoke_help_command(ctx)
        return
    try:
        codepoint = self.codepoint_from_input(raw_emoji)
    except ValueError:
        raise commands.BadArgument(
            "please include a valid emoji or emoji codepoint."
        )
    await ctx.send(embed=self.build_embed(codepoint))