Conversation Draft
data class ConversationDraft(val text: String, val emojiTags: List<List<String>> = emptyList(), val spans: List<DraftSpan> = emptyList(), val replyTo: MessageId? = null, val attachmentOperationIds: List<String> = emptyList(), val updatedAt: Long = 0)
Portable draft state shared by Android and future Apple clients.