Method contains

chirpstack/src/storage/fields/dev_nonces.rs:19–25

(&self, join_eui: EUI64, dev_nonce: u16)

impl DevNonces {
    pub fn contains(&self, join_eui: EUI64, dev_nonce: u16) -> bool {
        if let Some(v) = self.0.get(&join_eui) {
            v.contains(&dev_nonce)
        } else {
            false
        }
    }

    pub fn insert(&mut self, join_eui: EUI64, dev_nonce: u16) {
        self.0.entry(join_eui).or_default().push(dev_nonce)