Function fake_netstack::serialize_icmp_echo_reply

pub(crate) fn serialize_icmp_echo_reply<I>(
    buf: Buf<Vec<u8>>,
    reply: IcmpEchoReply
) -> Vec<u8> where
    I: IcmpIpExt,
    <I as Ip>::Addr: From<SpecifiedAddr<<I as Ip>::Addr>>,
    IcmpEchoReply: IcmpMessage<I, &'static [u8], Code = IcmpUnusedCode>,