_, err := certificate.Verify(x509.VerifyOptions{
			KeyUsages: []x509.ExtKeyUsage{
				x509.ExtKeyUsageClientAuth,
			},
			Roots: globalRootCAs,
		})
		if err != nil {
			writeSTSErrorResponse(ctx, w, ErrSTSInvalidClientCertificate, err)
			return
		}
	} else {
		// Technically, there is no security argument for verifying the key usage

	// Ensure the value being sent is kept alive until the
	// receiver copies it out. The sudog has a pointer to the
	// stack object, but sudogs aren't considered as roots of the
	// stack tracer.
	KeepAlive(ep)

	// someone woke us up.
	if mysg != gp.waiting {
		throw("G waiting list is corrupted")
	}
	gp.waiting = nil
	gp.activeStackChans = false

			if strings.Contains(ns, "@") {
				return nil, errorf("replacement module must match format 'path version', not 'path@version'")
			}
			return nil, errorf("replacement module without version must be directory path (rooted or starting with . or ..)")
		}
		if filepath.Separator == '/' && strings.Contains(ns, `\`) {
			return nil, errorf("replacement directory appears to be Windows path (on a non-windows system)")
		}
	}

	Service *ServiceReference `json:"service,omitempty" protobuf:"bytes,1,opt,name=service"`

	// caBundle is a PEM encoded CA bundle which will be used to validate the webhook's server certificate.
	// If unspecified, system trust roots on the apiserver are used.
	// +optional
	CABundle []byte `json:"caBundle,omitempty" protobuf:"bytes,2,opt,name=caBundle"`
}

// ServiceReference holds a reference to Service.legacy.k8s.io

			}
		}
	}
	return nil
}

// Walk walks the file tree rooted at root, calling walkFn for each file or
// directory in the tree, including root.
func Walk(root string, walkFn filepath.WalkFunc) error {
	Trace("Walk", root)
	info, err := Lstat(root)
	if err != nil {
		err = walkFn(root, nil, err)
	} else {
		err = walk(root, info, walkFn)
	}
	if err == filepath.SkipDir {
		return nil
	}

	Service *ServiceReference `json:"service,omitempty" protobuf:"bytes,1,opt,name=service"`

	// caBundle is a PEM encoded CA bundle which will be used to validate the webhook's server certificate.
	// If unspecified, system trust roots on the apiserver are used.
	// +optional
	CABundle []byte `json:"caBundle,omitempty" protobuf:"bytes,2,opt,name=caBundle"`
}

// ServiceReference holds a reference to Service.legacy.k8s.io

		buildAction := a

		a = b.cacheAction("install-shlib "+shlib, nil, func() *Action {
			// Determine the eventual install target.
			// The install target is root/pkg/shlib, where root is the source root
			// in which all the packages lie.
			// TODO(rsc): Perhaps this cross-root check should apply to the full
			// transitive package dependency list, not just the ones named
			// on the command line?

		if _, ok := kept[cur]; ok {
			g.Nodes = append(g.Nodes, cur)
			continue
		}

		// If a node has no parents, then delete all of the in edges of its
		// children to make them each roots of their own trees.
		if len(cur.In) == 0 {
			for _, outEdge := range cur.Out {
				delete(outEdge.Dest.In, cur)
			}
			continue
		}

	if err := f.checkValid("SyscallConn"); err != nil {
		return nil, err
	}
	return newRawConn(f)
}

// DirFS returns a file system (an fs.FS) for the tree of files rooted at the directory dir.
//
// Note that DirFS("/prefix") only guarantees that the Open calls it makes to the
// operating system will begin with "/prefix": DirFS("/prefix").Open("file") is the

  //
  // +optional
  optional ServiceReference service = 1;

  // caBundle is a PEM encoded CA bundle which will be used to validate the webhook's server certificate.
  // If unspecified, system trust roots on the apiserver are used.
  // +optional
  optional bytes caBundle = 2;