pub async fn build_client(
invite_code: Option<InviteCode>,
rocksdb: Option<&PathBuf>,
) -> Result<(ClientHandleArc, Option<InviteCode>)>
pub async fn build_client(
invite_code: Option<InviteCode>,
rocksdb: Option<&PathBuf>,
) -> Result<(ClientHandleArc, Option<InviteCode>)>