Using the WebBrowser tool with watsonx chat model throws an error

[peterzaccha]

Checked other resources

• This is a bug, not a usage question. For questions, please use the LangChain Forum (https://forum.langchain.com/).
• I added a very descriptive title to this issue.
• I searched the LangChain.js documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain.js rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

Using the following code

export function getLangChainModel(model: string) {
  return new ChatWatsonx({
    version: "2024-03-14",
    serviceUrl: WATSONX_BASE_URL,
    projectId: WATSONX_PROJECT_ID,
    watsonxAIAuthType: "iam",
    watsonxAIApikey: WATSONX_API_KEY,
    model,
  });
}
export function getLangChainEmbeddingsModel(model: string) {
  return new WatsonxEmbeddings({
    version: "2024-03-14",
    serviceUrl: WATSONX_BASE_URL,
    projectId: WATSONX_PROJECT_ID,
    watsonxAIAuthType: "iam",
    watsonxAIApikey: WATSONX_API_KEY,
    model,
    truncateInputTokens: 512,
  });
}

const browser = new WebBrowser({
  model: getLangChainModel(DEFAULT_MODEL_ID),
  embeddings: getLangChainEmbeddingsModel(EMBEDDING_MODEL),
});

await this.browser.invoke(input)

Error Message and Stack Trace (if applicable)

Error: Unexpected properties: handlers, inheritableHandlers, inheritableTags, inheritableMetadata, name, _parentRunId. Expected only: headers, signal, tool_choice, promptIndex, ls_structured_output_format, watsonxCallbacks, writer, interrupt, spaceId, projectId, tools, toolChoiceOption, frequencyPenalty, logitBias, logprobs, topLogprobs, maxTokens, maxCompletionTokens, n, presencePenalty, responseFormat, seed, stop, temperature, topP, timeLimit, model, reasoningEffort, includeReasoning.

Description

The problem is when the tool invokes the watsonx chat models it sends extra properties in the options handlers, inheritableHandlers, inheritableTags, inheritableMetadata, name, _parentRunId which makes the validation fail.

System Info

@langchain/community: 1.1.15
node: v20.19.2
platform: mac

[hntrl]

cc Filip Żmijewski (@FilipZmijewski)

[FilipZmijewski]

Hi! Thanks for reporting.
Proposed a fix in above PR