@type t() :: %Mobilizon.Conversations.ConversationParticipant{
  __meta__: term(),
  actor: Mobilizon.Actors.Actor.t(),
  actor_id: term(),
  conversation: Mobilizon.Conversations.Conversation.t(),
  conversation_id: term(),
  id: term(),
  inserted_at: term(),
  unread: boolean(),
  updated_at: term()
}