Imports github.com/miekg/dns github.com/quic-go/quic-go github.com/quic-go/quic-go/http3 golang.org/x/net/icmp golang.org/x/net/ipv4 golang.org/x/net/ipv6 Standard library imports bytes context crypto/tls errors fmt io math/rand net net/http net/url os strconv strings syscall time