my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```

/// info

`**second_user_data` means:

Pass the keys and values of the `second_user_data` dict directly as key-value arguments, equivalent to: `User(id=4, name="Mary", joined="2018-11-30")`

///

my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```

/// info

`**second_user_data` şu anlama geliyor:

Key-Value çiftini direkt olarak  `second_user_data` dictionarysine kaydet , yaptığın şey buna eşit olacak: `User(id=4, name="Mary", joined="2018-11-30")`

///

///

## 다중 모델

아래는 비밀번호 필드와 해당 필드가 사용되는 위치를 포함하여, 각 모델들이 어떤 형태를 가질 수 있는지 전반적인 예시입니다:

{* ../../docs_src/extra_models/tutorial001_py310.py hl[7,9,14,20,22,27:28,31:33,38:39] *}


/// info | 정보

Pydantic v1에서는 해당 메서드가 `.dict()`로 불렸으며, Pydantic v2에서는 `.model_dump()`로 이름이 변경되었습니다. `.dict()`는 여전히 지원되지만 더 이상 권장되지 않습니다.

			Key:   RegionKey,
			Value: "",
		},
	}

	DefaultRegionKVS = KVS{
		KV{
			Key:   RegionName,
			Value: "",
		},
	}
)

var siteLK sync.RWMutex

// Site - holds site info - name and region.
type Site struct {
	name   string
	region string
}

// Update safe update the new site name and region
func (s *Site) Update(n Site) {
	siteLK.Lock()
	s.name = n.name

pkg go/types, type ArgumentError struct, Index int
pkg go/types, type Config struct, Context *Context
pkg go/types, type Config struct, GoVersion string
pkg go/types, type Context struct
pkg go/types, type Info struct, Instances map[*ast.Ident]Instance
pkg go/types, type Instance struct
pkg go/types, type Instance struct, Type Type
pkg go/types, type Instance struct, TypeArgs *TypeList
pkg go/types, type Term struct

			t.Logf("%q (Open error: %v)", dirEntry.Name(), err)
		}
		t.FailNow()
	}
	info, err := dirEntries[0].Info()
	if err != nil {
		t.Fatalf("Error reading info entry: %v", err)
	}
	if name := info.Name(); name != "test.txt" {
		t.Errorf("Inconsistent name in info entry: %v", name)
	}
}

func TestUnderSize(t *testing.T) {
	z, err := OpenReader("testdata/readme.zip")

# _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
# you can define your messages here:
# e.g.
# errors.xxx = ...
# info.xxx = ...
# _/_/_/_/_/_/_/_/_/_/
# ========================================================================================
# Fess
# ======
errors.login_error = अमान्य उपयोगकर्ता नाम या पासवर्ड।

                    }
                }
            } catch (final IOException e) {
                throw new CrawlingAccessException("Failed to access permission info", e);
            }
            if (logger.isDebugEnabled()) {
                logger.debug("fileUrl:{} roleType:{}", responseData.getUrl(), roleTypeList);
            }
        }
        return roleTypeList;

            setContext(contextBytes);
        }
        pos += 8;

        if (targetNameOff < pos + 8 || input.length < pos + 8) {
            // no room for target info
            return;
        }

        final byte[] targetInfo = readSecurityBuffer(input, pos);
        if (targetInfo.length != 0) {
            setTargetInformation(targetInfo);
        }
    }

### 创建 `Enum` 类

导入 `Enum` 并创建继承自 `str` 和 `Enum` 的子类。

通过从 `str` 继承，API 文档就能把值的类型定义为**字符串**，并且能正确渲染。

然后，创建包含固定值的类属性，这些固定值是可用的有效值：

{* ../../docs_src/path_params/tutorial005.py hl[1,6:9] *}

/// info | 说明

Python 3.4 及之后版本支持<a href="https://docs.python.org/zh-cn/3/library/enum.html" class="external-link" target="_blank">枚举（即 enums）</a>。

///

/// tip | 提示