AggRateLimitsP takes a list of rate limit responses and dedups them to the last one received of each category.

upper bounds takes higher priority.

FilterByType filters messages based on a query.

GetConversationStatusBehavior gives information about what is allowed for a conversation status.

GetSupersedes must be called with a valid msg.

parseDurationExtended is like time.ParseDuration, but adds "d" unit.

ReorderParticipants based on the order in activeList.

Which convs show in the inbox.

ConversationStatusBehavior describes how a ConversationStatus behaves.