// `callees`.
LogicalResult GetCallees(SymbolUserOpInterface op, SymbolTable &symtab,
                         llvm::SmallVector<func::FuncOp> &callees);

// Find the first op with any of the specified types on each path rooted at the
// `root` node in a tree. Additional checks can be applied via `predicate`. The
// results are stored in `ops`.
template <typename T, typename... Types>
LogicalResult GetFirstOpsOfType(

type zeroSource struct{}

func (zeroSource) Read(b []byte) (n int, err error) {
	clear(b)
	return len(b), nil
}

func ExampleDial() {
	// Connecting with a custom root-certificate set.

	const rootPEM = `
-- GlobalSign Root R2, valid until Dec 15, 2021
-----BEGIN CERTIFICATE-----
MIIDujCCAqKgAwIBAgILBAAAAAABD4Ym5g0wDQYJKoZIhvcNAQEFBQAwTDEgMB4G
A1UECxMXR2xvYmFsU2lnbiBSb290IENBIC0gUjIxEzARBgNVBAoTCkdsb2JhbFNp

import (
	"errors"
	"path"
)

// A SubFS is a file system with a Sub method.
type SubFS interface {
	FS

	// Sub returns an FS corresponding to the subtree rooted at dir.
	Sub(dir string) (FS, error)
}

// Sub returns an [FS] corresponding to the subtree rooted at fsys's dir.
//
// If dir is ".", Sub returns fsys unchanged.
// Otherwise, if fs implements [SubFS], Sub returns fsys.Sub(dir).

//     (concrete type / interface type).  This itab goes in hash bucket 0x111.
//  2. The plugin adds that same itab again.  That makes a cycle in the itab
//     chain rooted at hash bucket 0x111.
//  3. The main binary then asks for the itab for *dynamodbstreamsevt.Event /
//     json.Unmarshaler.  This itab happens to also live in bucket 0x111.

var getHostname = os.Hostname // variable for testing

type dnsConfig struct {
	servers       []string      // server addresses (in host:port form) to use
	search        []string      // rooted suffixes to append to local name
	ndots         int           // number of dots in name to trigger absolute lookup
	timeout       time.Duration // wait before giving up on a query, including retries

func setupConfig(_ resource.Context, cfg *istio.Config) {
	if cfg == nil {
		return
	}
	// Add alternate root certificate to list of trusted anchors
	script := path.Join(env.IstioSrc, "samples/certs", "root-cert-alt.pem")
	rootPEM, err := cert.LoadCert(script)
	if err != nil {
		return
	}

	cfgYaml := tmpl.MustEvaluate(`
values:
  pilot:
    env:
      ISTIO_MULTIROOT_MESH: true
  meshConfig:
    defaultConfig:

	UsageLine: "go mod init [module-path]",
	Short:     "initialize new module in current directory",
	Long: `
Init initializes and writes a new go.mod file in the current directory, in
effect creating a new module rooted at the current directory. The go.mod file
must not already exist.

Init accepts one optional argument, the module path for the new module. If the
module path argument is omitted, init will attempt to infer the module path

//  2. Eliminate each . path name element (the current directory).
//  3. Eliminate each inner .. path name element (the parent directory)
//     along with the non-.. element that precedes it.
//  4. Eliminate .. elements that begin a rooted path:
//     that is, replace "/.." by "/" at the beginning of a path,
//     assuming Separator is '/'.
//
// The returned path ends in a slash only if it represents a root directory,

            }
            builder.add(propertySpec);
        }
        return builder.build();
    }

    /**
     * Resolves the actual value for an input file.
     *
     * The value is the file tree rooted at the provided path for an input directory, and the provided path otherwise.
     */

func DoChildren(n Node, do func(Node) bool) bool {
	if n == nil {
		return false
	}
	return n.doChildren(do)
}

// Visit visits each non-nil node x in the IR tree rooted at n
// in a depth-first preorder traversal, calling visit on each node visited.
func Visit(n Node, visit func(Node)) {
	if n == nil {
		return
	}
	var do func(Node) bool
	do = func(x Node) bool {
		visit(x)