Imports golang.org/x/net/idna golang.org/x/net/http/httpguts golang.org/x/net/http2/hpack Standard library imports bufio bytes compress/gzip context crypto/rand crypto/tls encoding/binary errors fmt io io/ioutil log math math/rand net net/http net/http/httptrace net/textproto net/url os reflect runtime sort strconv strings sync time