@langchain/community lost the type hints

[postbird]

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Example Code

import {} from '@langchain/community/';

Description

Currently, I found the ts hints lost during I wanted to import some packages from @langchain/community like below:

I tried to find the reason but failed. Did anyone have the same issue?( node: '>=18')

Packages versions of laingchain:

    "@langchain/community": "^0.3.32",
    "@langchain/core": "^0.3.40",
    "langchain": "^0.3.19",
    "langsmith": "^0.3.10"
    
        "ts-node": "^10.8.1",
    "tsconfig-paths": "^4.2.0",
    "typescript": "^4.9.3"

My ts configuration:

For now, I have to add these packages in a global ts file

System Info

None

[dosubot[bot]]

Hey there, @postbird! I'm here to help you with any bugs, questions, or contributions you have for the LangChain community. Let's tackle this challenge together!

The issue you're experiencing with missing type hints when importing from @langchain/community might be related to how TypeScript resolves types and the structure of the package. Here are a few steps you can take to troubleshoot and potentially resolve the issue:

1. Check TypeScript Configuration: Ensure that your tsconfig.json is correctly set up to resolve types. You might want to verify that the moduleResolution is set to node or NodeNext, as this can affect how TypeScript finds type definitions.

2. Verify Package Versions: Make sure that the versions of @langchain/community and its peer dependencies are compatible. The @langchain/community package has peer dependencies like @langchain/core that need to be within specific version ranges ^[1].

3. Type Definitions: Check if the index.d.ts file in the @langchain/community package correctly exports all necessary types. If there are missing exports, this could lead to the issue you're facing.

4. Global Type Declarations: As a temporary workaround, you can continue using a global TypeScript declaration file (global.d.ts) to manually include the necessary type definitions. This is not ideal but can help until the root cause is resolved.

5. Dependencies and Peer Dependencies: Ensure that all dependencies and peer dependencies are installed and correctly resolved. Sometimes, missing or incompatible dependencies can lead to type resolution issues ^[1].

If these steps do not resolve the issue, it might be worth checking for any recent changes or updates in the @langchain/community package that could have affected type definitions.

To continue talking to Dosu, mention @dosu.

---

^{Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other}

[postbird]

Hey there, @postbird! I'm here to help you with any bugs, questions, or contributions you have for the LangChain community. Let's tackle this challenge together!

The issue you're experiencing with missing type hints when importing from @langchain/community might be related to how TypeScript resolves types and the structure of the package. Here are a few steps you can take to troubleshoot and potentially resolve the issue:

1. Check TypeScript Configuration: Ensure that your tsconfig.json is correctly set up to resolve types. You might want to verify that the moduleResolution is set to node or NodeNext, as this can affect how TypeScript finds type definitions.
2. Verify Package Versions: Make sure that the versions of @langchain/community and its peer dependencies are compatible. The @langchain/community package has peer dependencies like @langchain/core that need to be within specific version ranges [1].
3. Type Definitions: Check if the index.d.ts file in the @langchain/community package correctly exports all necessary types. If there are missing exports, this could lead to the issue you're facing.
4. Global Type Declarations: As a temporary workaround, you can continue using a global TypeScript declaration file (global.d.ts) to manually include the necessary type definitions. This is not ideal but can help until the root cause is resolved.
5. Dependencies and Peer Dependencies: Ensure that all dependencies and peer dependencies are installed and correctly resolved. Sometimes, missing or incompatible dependencies can lead to type resolution issues [1].

If these steps do not resolve the issue, it might be worth checking for any recent changes or updates in the @langchain/community package that could have affected type definitions.

To continue talking to Dosu, mention @dosu.

Help Dosu learn! Give it feedback: Great Response | Irrelevant Answer | Incorrect Sources | Too Verbose | Hallucination | Bug Report | Other

No actually help, I checked the ts configuration and tried again.

I am using the follow configuration to solve the issue:

    "paths": {
      "@langchain/community/*": ["node_modules/@langchain/community/dist/*"],
      "langchain": ["node_modules/langchain/dist"]
    }

[postbird]

I created a new empty project via nest.js, also had the same issue.

Currently, I solved the issue by writing a script and generating a d.ts file to add all the ts reference