Struct NotifyOptions 

pub struct NotifyOptions {
    pub headers: Vec<Header>,
    pub notify_id: Option<[u8; 16]>,
}

NotifyOptions carries optional metadata for a server-initiated push notification.

Pass this to Server::notify_with_options when you need to attach custom headers or a stable notification identifier to the push message.

Fields

headers: Vec<Header>

Custom headers to include in the notification message.

notify_id: Option<[u8; 16]>

Optional 16-byte notification identifier.

When Some, the C library sets has_notify_id = 1 in the wire message so the peer can deduplicate retransmitted notifications.