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JavaScriptlangchainindexAIMessageisInstance

Method●Since v1.0

isInstance

Copy

isInstance<
  T extends MessageStructure<MessageToolSet>
>(obj: BaseMessage<T>): obj is

View source on GitHub

<

T

,

MessageType

>

AIMessage

<

T

>

Parameters

Name	Type	Description
`obj`*	`BaseMessage<T>`

Type guard to check if an object is an AIMessage. Preserves the MessageStructure type parameter when called with a typed BaseMessage. When called with a typed BaseMessage, preserves the TStructure type