got := tt.setting.Value()
		if got != tt.want {
			t.Errorf("get(%q, %q) = %q; want %q", tt.godebug, tt.setting.Name(), got, tt.want)
		}
	}
}

func TestMetrics(t *testing.T) {
	const name = "http2client" // must be a real name so runtime will accept it

	var m [1]metrics.Sample
	m[0].Name = "/godebug/non-default-behavior/" + name + ":events"
	metrics.Read(m[:])
	if kind := m[0].Value.Kind(); kind != metrics.KindUint64 {

# You will see the REQUEST, including HEADERS and DATA, and RESPONSE with HEADERS but without DATA.
# The only thing missing will be the response.body which is not logged.
import http.client as http_client
http_client.HTTPConnection.debuglevel = 0

app = Flask(__name__)
FlaskInstrumentor().instrument_app(app)
logging.basicConfig(stream=sys.stdout, level=logging.INFO)
requests_log = logging.getLogger("requests.packages.urllib3")

		package due to a non-default GODEBUG=gotypesalias=... setting.

	/godebug/non-default-behavior/http2client:events
		The number of non-default behaviors executed by the net/http
		package due to a non-default GODEBUG=http2client=... setting.

	/godebug/non-default-behavior/http2server:events
		The number of non-default behaviors executed by the net/http
		package due to a non-default GODEBUG=http2server=... setting.

	return t.DialTLS != nil || t.DialTLSContext != nil
}

var http2client = godebug.New("http2client")

// onceSetNextProtoDefaults initializes TLSNextProto.
// It must be called via t.nextProtoOnce.Do.
func (t *Transport) onceSetNextProtoDefaults() {
	t.tlsNextProtoWasNil = (t.TLSNextProto == nil)
	if http2client.Value() == "0" {
		http2client.IncNonDefault()
		return
	}