MessageDelta
constructor(attachments: Optional<Set<Attachment>>, content: Optional<String>, editedTimestamp: Optional<Instant?>, embeds: Optional<List<Embed>>, isPinned: Optional<Boolean>, mentionedChannelIds: Optional<Set<Snowflake>>, mentionedRoleIds: Optional<Set<Snowflake>>, mentionedUserIds: Optional<Set<Snowflake>>, mentionsEveryone: Optional<Boolean>, reactions: Optional<Set<Reaction>>, stickers: Optional<List<StickerItem>>)