modifyGuildSticker
suspend fun modifyGuildSticker(guildId: Snowflake, id: Snowflake, request: GuildStickerModifyRequest): DiscordMessageSticker(source)
inline suspend fun modifyGuildSticker(guildId: Snowflake, id: Snowflake, builder: StickerModifyBuilder.() -> Unit): DiscordMessageSticker(source)