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JavaScript@langchain/coretracersrun_collectorRunCollectorCallbackHandlerhandleLLMStart

Method●Since v1.0

handleLLMStart

Copy

handleLLMStart(
  llm: Serialized,
  prompts: string[],
  runId: string,
  parentRunId: string,
  extraParams: KVMap

View source on GitHub

,

tags

:

string

[

]

,

metadata

:

KVMap

,

name

:

string

)

:

<

>

Parameters

Name	Type	Description
`llm`*	`Serialized`
`prompts`*	`string[]`
`runId`*	`string`
`parentRunId`	`string`
`extraParams`	`KVMap`
`tags`	`string[]`
`metadata`	`KVMap`
`name`	`string`

Called at the start of an LLM or Chat Model run, with the prompt(s) and the run ID.