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JavaScript@langchain/coretestingLangChainMatcherstoHaveStreamOutput

Method●Since v1.2

toHaveStreamOutput

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toHaveStreamOutput(expected: StreamOutputExpectation): R

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Parameters

Name	Type	Description
`expected`*	`StreamOutputExpectation`	A partial output expectation checked against `ChatModelStream.output`.

Asserts that the final streamed output message matches the expected fields.