pub struct CreateOrUpdatePrivateMessage {
pub(crate) id: Url,
pub(crate) actor: ObjectId<ApubPerson>,
+ #[serde(deserialize_with = "crate::deserialize_one")]
pub(crate) to: [ObjectId<ApubPerson>; 1],
pub(crate) object: ChatMessage,
#[serde(rename = "type")]