indentedIn bool
	putNewline bool
	attrNS     map[string]string // map prefix -> name space
	attrPrefix map[string]string // map name space -> prefix
	prefixes   []string
	tags       []Name
	closed     bool
	err        error
}

// createAttrPrefix finds the name space prefix attribute to use for the given name space,
// defining a new prefix if necessary. It returns the prefix.

		Free:   uint64(s.Bsize) * uint64(s.Bavail),
		Files:  s.Files,
		Ffree:  uint64(s.Ffree),
		FSType: getFSType(s.Fstypename[:]),
	}
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor

// this assumes the four fastcall registers were first spilled
// to the shadow space.
type abiDesc struct {
	parts []abiPart

	srcStackSize uintptr // stdcall/fastcall stack space tracking
	dstStackSize uintptr // Go stack space used
	dstSpill     uintptr // Extra stack space for argument spill slots
	dstRegisters int     // Go ABI int argument registers used

		want []string
	}{
		{[]byte(`-r:foo -L/usr/white\ space/lib -lfoo\ bar -lbar\ baz`), []string{"-r:foo", "-L/usr/white space/lib", "-lfoo bar", "-lbar baz"}},
		{[]byte(`-lextra\ fun\ arg\\`), []string{`-lextra fun arg\`}},
		{[]byte("\textra     whitespace\r\n"), []string{"extra", "whitespace\r"}},
		{[]byte("     \r\n      "), []string{"\r"}},

  }

  @Test
  fun stringEscapingIsWeird() {
    val expected =
      """
      |--AaB03x
      |Content-Disposition: form-data; name="field with spaces"; filename="filename with spaces.txt"
      |Content-Type: text/plain; charset=utf-8
      |
      |okay
      |--AaB03x
      |Content-Disposition: form-data; name="field with %22"
      |
      |"
      |--AaB03x

	// because we ensure that StackSmall bytes of stack space are available
	// beyond the stack guard.
	StackSmall = 128

	// Functions that need frames <= StackBig can assume that neither
	// SP-framesize nor stackGuard-StackSmall will underflow, and thus use a
	// more efficient check. In order to ensure this, StackBig must be <= the
	// size of the unmapped space at zero.
	StackBig = 4096

	// provide addresses outside of those 33 bits. Pick 40 bits
	// as a reasonable balance between address space usage by the
	// page allocator, and flexibility for what mmap'd regions
	// we'll accept for the heap. We can't just move to the full
	// 48 bits because this uses too much address space for older
	// iOS versions.
	// TODO(mknyszek): Once iOS <14 is deprecated, promote ios/arm64

				fmt.Fprintf(&out, "[%s]: %s\n", def.Text, def.URL)
			}
		}
	}
	return out.Bytes()
}

// writeNL calls out.WriteByte('\n')
// but first trims trailing spaces on the previous line.
func writeNL(out *bytes.Buffer) {
	// Trim trailing spaces.
	data := out.Bytes()
	n := 0
	for n < len(data) && (data[len(data)-n-1] == ' ' || data[len(data)-n-1] == '\t') {
		n++
	}
	if n > 0 {
		out.Truncate(len(data) - n)
	}

		Free:   uint64(s.Frsize) * uint64(s.Bavail),
		Files:  uint64(s.Files),
		Ffree:  uint64(s.Ffree),
		FSType: getFSType(s.Fstr[:]),
	}
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor

	"net/http"
	"strings"

	"k8s.io/apiserver/pkg/authentication/authenticator"
	"k8s.io/apiserver/pkg/warning"
)

const (
	invalidTokenWithSpaceWarning = "the provided Authorization header contains extra space before the bearer token, and is ignored"
)

type Authenticator struct {
	auth authenticator.Token
}

func New(auth authenticator.Token) *Authenticator {
	return &Authenticator{auth}
}