)

// Variables from function calls.
var (
	V = ptwo.F()
	// Deprecated: use WError.
	VError = BarE()
	V1     = Bar1(1, 2, 3)
	V2     = ptwo.G()
)

// Variables with conversions:
var (
	StrConv  = string("foo")
	ByteConv = []byte("foo")
)

var ChecksumError = ptwo.NewError("gzip checksum error")

const B0 = 2
const StrConst = "foo"
const FloatConst = 1.5

type myInt int

	if err := DB.Select("people.*, addresses.*").
		Table("people").
		Joins("inner join person_addresses on people.id = person_addresses.person_id").
		Joins("inner join addresses on person_addresses.address_id = addresses.id").
		Find(&personAddressInfoList).Error; err != nil {
		t.Errorf("Failed to run join query, got error: %v", err)
	}

	personMatched := false
	addressMatched := false

	person := Person{Name: "person", Addresses: []Address{address1, address2}}
	DB.Create(&person)

	var addresses1 []Address
	if err := DB.Model(&person).Association("Addresses").Find(&addresses1); err != nil || len(addresses1) != 2 {
		t.Fatalf("Failed to find address, got error %v, length: %v", err, len(addresses1))
	}

	if err := DB.Model(&person).Association("Addresses").Delete(&person.Addresses[0]); err != nil {

	var pathErr *os.PathError
	if errors.As(err, &pathErr) {
		var errno syscall.Errno
		if errors.As(pathErr.Err, &errno) {
			// ERROR_PATH_NOT_FOUND
			return errno == 0x6
		}
	}
	return false
}

func isSysErrCrossDevice(err error) bool {
	return errors.Is(err, syscall.EXDEV)
}

// Check if given error corresponds to too many open files

// Hint - Replace the current error's message
func (u Err) Hint(m string, args ...interface{}) Err {
	e := u.Clone()
	e.hint = fmt.Sprintf(m, args...)
	return e
}

// ErrFn function wrapper
type ErrFn func(err error) Err

// Create a UI error generator, this is needed to simplify
// the update of the detailed error message in several places
// in MinIO code
func newErrFn(msg, action, hint string) ErrFn {
	return func(err error) Err {

pkg p1, type EmbedURLPtr struct
pkg p1, type EmbedURLPtr struct, embedded *URL
pkg p1, type Embedded struct
pkg p1, type Error interface { Error, Temporary }
pkg p1, type Error interface, Error() string
pkg p1, type Error interface, Temporary() bool
pkg p1, type FuncType func(int, int, string) (*B, error)
pkg p1, type I interface, Get(string) int64
pkg p1, type I interface, Get //deprecated
pkg p1, type I interface, GetNamed(string) int64

			t.Fatalf("Unexpected error expecting %s", syscall.ENOTEMPTY)
		}
	} else {
		pathErr = &os.PathError{Err: syscall.Errno(0x91)}
		ok = isSysErrNotEmpty(pathErr)
		if !ok {
			t.Fatal("Unexpected error expecting 0x91")
		}
	}
	if runtime.GOOS == globalWindowsOSName {
		pathErr = &os.PathError{Err: syscall.Errno(0x03)}
		ok = isSysErrPathNotFound(pathErr)
		if !ok {
			t.Fatal("Unexpected error expecting 0x03")
		}
	}

    close(src_fd);
    return -1;
  }

  // Both files have been opened, do the transfer.
  // Since errno would be overridden by `close` below, save it here.
  int error_code = 0;
  if (CopyFileContents(dst_fd, src_fd, size) < 0) error_code = errno;

  close(src_fd);
  close(dst_fd);
  if (error_code != 0) {
    errno = error_code;
    return -1;
  } else {
    return 0;
  }
}

pkg bufio, method (ReadWriter) ReadString(uint8) (string, error)
pkg bufio, method (ReadWriter) UnreadByte() error
pkg bufio, method (ReadWriter) UnreadRune() error
pkg bufio, method (ReadWriter) Write([]uint8) (int, error)
pkg bufio, method (ReadWriter) WriteByte(uint8) error
pkg bufio, method (ReadWriter) WriteRune(int32) (int, error)
pkg bufio, method (ReadWriter) WriteString(string) (int, error)
pkg bufio, type ReadWriter struct

### Classes como tipos

Você também pode declarar uma classe como o tipo de uma variável.

Digamos que você tenha uma classe `Person`, com um nome:

```Python hl_lines="1 2 3"
{!../../../docs_src/python_types/tutorial010.py!}
```

Então você pode declarar que uma variável é do tipo `Person`:

```Python hl_lines="6"
{!../../../docs_src/python_types/tutorial010.py!}
```