mirai-core-api/net.mamoe.mirai.message.data/OnlineMessageSource/Outgoing/Key

Key

object Key : AbstractPolymorphicMessageKey<OnlineMessageSource, OnlineMessageSource.Outgoing>
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Properties

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abstract val safeCast: (SingleMessage) -> OnlineMessageSource.Outgoing?
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将一个 SingleMessage 强转为 M 类型. 在类型不符合时返回 null