# 类: CacheMessage

[(返回目录)](/api.md)

**继承自:** [MessageAPI](/api/messageapi.md)

RainyBot的缓存消息类，通常代表一个对应实例，用于储存从机器人后端缓存中读取的消息的相关信息

## 描述

这是RainyBot的缓存消息类，通常代表一个对应实例，用于储存从机器人后端缓存中读取的消息的相关信息\
此类实例中通常储存了消息对应的消息链，以及消息对应的发送者实例等信息

## 方法

* static [CacheMessage](/api/cachemessage.md) **init\_meta (** [Dictionary](https://docs.godotengine.org/en/latest/classes/class_dictionary.html) dic **)**

通过机器人协议后端的元数据字典构造一个CacheMessage类的实例，仅当你知道自己在做什么时才使用

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* [Dictionary](https://docs.godotengine.org/en/latest/classes/class_dictionary.html) **get\_metadata ( )**

获取实例中的元数据字典，仅当你知道自己在做什么时才使用

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* void **set\_metadata (** [Dictionary](https://docs.godotengine.org/en/latest/classes/class_dictionary.html) dic **)**

使用指定字典覆盖实例中的元数据字典，仅当你知道自己在做什么时才使用

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* [MessageChain](/api/messagechain.md) **get\_message\_chain ( )**

获取缓存消息实例中储存的消息对应的消息链

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* [RoleAPI](/api/roleapi.md) **get\_sender ( )**

获取缓存消息实例中储存的消息对应的发送者实例

返回的类型不定，可能返回Member,GroupMember或OtherClient类的实例

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