# get\_layer\_info 方法

## 简要

获取一个已创建层的指定层版本的信息。

```python
def get_layer_info(self,
    region_id: str,
    layer_name: str,
    layer_version: int
) -> dict
```

## 参数

该方法的参数和参数描述如下：

| 参数             | 类型  | 必选 | 描述                                                    |
| -------------- | --- | -- | ----------------------------------------------------- |
| region\_id     | str | 是  | <p>层的数据中心唯一标识符。</p><p>例如：<code>ap-shanghai</code></p> |
| layer\_name    | str | 是  | <p>层的唯一名称。</p><p>例如：<code>default</code></p>          |
| layer\_version | int | 是  | <p>层的版本编号。</p><p>例如：<code>1</code></p>                |

## 返回值

该方法返回包含层信息的字典实例，其数据类型为 [LayerInfo](https://smallso.gitbook.io/tencent-cloud-sdk/python-docs/serverless-functions/data-types/layer-info)。

## 异常

该方法可能会主动引发以下异常：

#### ValueError

参数值或类型不符合预期。

#### ActionError

Tencent Cloud API 错误。例如访问凭据无效、给定无服务器云函数不存在等均会引发该异常。

## 示例

下面我们将通过一段 Python 代码向您演示如何使用该方法：

```python
layer_info: dict = function_client.get_layer_info(
    region_id = 'ap-shanghai',
    layer_name = 'default',
    layer_version = 1
)
```

## 适用于

#### Tencent Cloud SDK for Python

产品软件包：tencent-cloud-sdk-serverless-functions >= 0.1.2


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