func (t *http2Transport) RoundTripOpt(req *Request, opt http2RoundTripOpt) (*Response, error) {
	if !(req.URL.Scheme == "https" || (req.URL.Scheme == "http" && t.AllowHTTP)) {
		return nil, errors.New("http2: unsupported scheme")
	}

	addr := http2authorityAddr(req.URL.Scheme, req.URL.Host)
	for retry := 0; ; retry++ {
		cc, err := t.connPool().GetClientConn(req, addr)
		if err != nil {

		}
	default:
		allErrs = append(allErrs, field.Invalid(fldPath.Child("operator"), req.Operator, "not a valid selector operator"))
	}

	if vf, found := nodeFieldSelectorValidators[req.Key]; !found {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("key"), req.Key, "not a valid field selector key"))
	} else {
		for i, v := range req.Values {
			for _, msg := range vf(v, false) {

      <match value="0x223e9f78" type="little32" offset="0" />
    </magic>
  </mime-type>

  <mime-type type="application/vnd.ms-wmdrm.lic-chlg-req"/>
  <mime-type type="application/vnd.ms-wmdrm.lic-resp"/>
  <mime-type type="application/vnd.ms-wmdrm.meter-chlg-req"/>
  <mime-type type="application/vnd.ms-wmdrm.meter-resp"/>

  <mime-type type="application/vnd.ms-word.document.macroenabled.12">

	// following inlined struct so than an EphemeralContainer may easily be converted
	// to a Container.
	EphemeralContainerCommon `json:",inline" protobuf:"bytes,1,req"`

	// If set, the name of the container from PodSpec that this ephemeral container targets.
	// The ephemeral container will be run in the namespaces (IPC, PID, etc) of this container.