pkg os (freebsd-arm64-cgo), const PathListSeparator = 58
pkg os (freebsd-arm64-cgo), const PathSeparator = 47
pkg path/filepath (freebsd-arm64), const ListSeparator = 58
pkg path/filepath (freebsd-arm64), const Separator = 47
pkg path/filepath (freebsd-arm64-cgo), const ListSeparator = 58
pkg path/filepath (freebsd-arm64-cgo), const Separator = 47
pkg runtime (freebsd-arm64), const GOARCH = "arm64"
pkg runtime (freebsd-arm64), const GOOS = "freebsd"

pkg os (darwin-arm64-cgo), const PathListSeparator = 58
pkg os (darwin-arm64-cgo), const PathSeparator = 47
pkg path/filepath (darwin-arm64), const ListSeparator = 58
pkg path/filepath (darwin-arm64), const Separator = 47
pkg path/filepath (darwin-arm64-cgo), const ListSeparator = 58
pkg path/filepath (darwin-arm64-cgo), const Separator = 47
pkg runtime (darwin-arm64), const GOARCH = "arm64"
pkg runtime (darwin-arm64), const GOOS = "darwin"

   }

  }()
 }))

 // Subscribe to subject
 subscribe()

 // Keep the connection alive
 runtime.Goexit()
}

```

```
go run nats.go
2017/07/07 11:47:40 Connected
2017/07/07 11:47:40 Subscribing to subject 'bucketevents'
```

Open another terminal and upload a JPEG image into `images` bucket.

```
mc cp myphoto.jpg myminio/images
```

Import `Base` from `database` (the file `database.py` from above).

Create classes that inherit from it.

These classes are the SQLAlchemy models.

```Python hl_lines="4  7-8  18-19"
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

The `__tablename__` attribute tells SQLAlchemy the name of the table to use in the database for each of these models.

    而 Pydantic 也使用“模型”这个术语 来指代不同的东西，即数据验证、转换以及文档类和实例。

从`database`（来自上面的`database.py`文件）导入`Base`。

创建从它继承的类。

这些类就是 SQLAlchemy 模型。

```Python hl_lines="4  7-8  18-19"
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

这个`__tablename__`属性是用来告诉 SQLAlchemy 要在数据库中为每个模型使用的数据库表的名称。

### 创建模型属性/列

现在创建所有模型（类）属性。

这些属性中的每一个都代表其相应数据库表中的一列。

    ✋️ Pydantic ⚙️ ⚖ "**🏷**" 🔗 🕳 🎏, 💽 🔬, 🛠️, & 🧾 🎓 & 👐.

🗄 `Base` ⚪️➡️ `database` (📁 `database.py` ⚪️➡️ 🔛).

✍ 🎓 👈 😖 ⚪️➡️ ⚫️.

👫 🎓 🇸🇲 🏷.

```Python hl_lines="4  7-8  18-19"
{!../../../docs_src/sql_databases/sql_app/models.py!}
```

`__tablename__` 🔢 💬 🇸🇲 📛 🏓 ⚙️ 💽 🔠 👫 🏷.

### ✍ 🏷 🔢/🏓

🔜 ✍ 🌐 🏷 (🎓) 🔢.

🔠 👫 🔢 🎨 🏓 🚮 🔗 💽 🏓.

pkg os (freebsd-riscv64-cgo), const PathSeparator = 47 #53466
pkg path/filepath (freebsd-riscv64), const ListSeparator = 58 #53466
pkg path/filepath (freebsd-riscv64), const Separator = 47 #53466
pkg path/filepath (freebsd-riscv64-cgo), const ListSeparator = 58 #53466
pkg path/filepath (freebsd-riscv64-cgo), const Separator = 47 #53466
pkg runtime (freebsd-riscv64), const GOARCH = "riscv64" #53466

  E0303 17:25:03.436781 63839 summary_sys_containers.go:47] Failed to get system container stats for "/docker": failed to get cgroup stats for "/docker": failed to get container info for "/docker": unknown container "/docker"