}

var resolvableSubsystems = set.CreateStringSet(IdentityOpenIDSubSys, IdentityLDAPSubSys, PolicyPluginSubSys)

// ValueSource represents the source of a config parameter value.
type ValueSource uint8

// Constants for ValueSource
const (
	ValueSourceAbsent ValueSource = iota // this is an error case
	ValueSourceDef
	ValueSourceCfg
	ValueSourceEnv
)

		for _, h := range []string{"Content-Length", "Transfer-Encoding"} {
			if v, ok := header[h]; ok {
				t.Errorf("%s is %q; must not be sent", h, v)
			}
		}
	}

	var respCounter uint8
	trace := &httptrace.ClientTrace{
		Got1xxResponse: func(code int, header textproto.MIMEHeader) error {
			switch respCounter {
			case 0: