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‎packages/ai-providers/server-ai-langchain/README.md‎

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For more information about using the LaunchDarkly AI SDK, see the [LaunchDarkly AI SDK documentation](https://github.com/launchdarkly/js-core/tree/main/packages/sdk/server-ai/README.md).
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## Langchain Provider Installation
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> **Important**: You will need to install additional provider packages for the specific AI models you want to use. LangChain requires separate packages for each provider.
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When creating a new LangChain model, LaunchDarkly uses an AI Config and the `initChatModel` provided by LangChain to create a model instance. You should install all LangChain providers for each provider you plan to use in your AI Config to ensure they can be properly instantiated.
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### Installing a LangChain Provider
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To use specific AI models, install the corresponding provider package:
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```shell
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# For OpenAI models
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npm install @langchain/openai --save
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# or
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yarn add @langchain/openai
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```
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For a complete list of available providers and installation instructions, see the [LangChain JavaScript Integrations documentation](https://js.langchain.com/docs/integrations/chat/).
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## Advanced Usage
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For more control, you can use the LangChain provider package directly with LaunchDarkly configurations:

‎packages/ai-providers/server-ai-langchain/package.json‎

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],
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"author": "LaunchDarkly",
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"license": "Apache-2.0",
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"dependencies": {
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"@langchain/core": ">=0.2.21 <0.3.0",
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"@launchdarkly/server-sdk-ai": "^0.12.1",
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"langchain": "^0.2.11"
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},
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"devDependencies": {
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"@launchdarkly/js-server-sdk-common": "2.16.2",
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"@langchain/core": "^0.3.0",
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"@trivago/prettier-plugin-sort-imports": "^4.1.1",
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"@types/jest": "^29.5.3",
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"@typescript-eslint/eslint-plugin": "^6.20.0",
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"eslint-plugin-jest": "^27.6.3",
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"eslint-plugin-prettier": "^5.0.0",
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"jest": "^29.6.1",
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"langchain": "^0.3.0",
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"prettier": "^3.0.0",
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"ts-jest": "^29.1.1",
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"typescript": "5.1.6"
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},
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"peerDependencies": {
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"@launchdarkly/js-server-sdk-common": "2.x"
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"@langchain/core": "^0.2.0 || ^0.3.0",
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"langchain": "^0.2.0 || ^0.3.0"
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}
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}

‎packages/ai-providers/server-ai-langchain/src/LangChainProvider.ts‎

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import { AIMessage, HumanMessage, SystemMessage } from '@langchain/core/messages';
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import { initChatModel } from 'langchain/chat_models/universal';
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import { LDLogger } from '@launchdarkly/js-server-sdk-common';
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import {
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AIProvider,
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import { AIProvider } from '@launchdarkly/server-sdk-ai';
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import type {
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ChatResponse,
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LDAIConfig,
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LDAIMetrics,
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LDLogger,
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LDMessage,
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LDTokenUsage,
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} from '@launchdarkly/server-sdk-ai';

‎packages/ai-providers/server-ai-openai/package.json‎

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],
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"author": "LaunchDarkly",
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"license": "Apache-2.0",
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"dependencies": {
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"@launchdarkly/server-sdk-ai": "^0.12.1",
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"openai": "^4.0.0"
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},
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"devDependencies": {
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"@launchdarkly/js-server-sdk-common": "2.16.2",
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"@trivago/prettier-plugin-sort-imports": "^4.1.1",
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"@types/jest": "^29.5.3",
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"@typescript-eslint/eslint-plugin": "^6.20.0",
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"eslint-plugin-jest": "^27.6.3",
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"eslint-plugin-prettier": "^5.0.0",
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"jest": "^29.6.1",
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"openai": "^6.0.0",
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"prettier": "^3.0.0",
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"ts-jest": "^29.1.1",
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"typescript": "5.1.6"
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},
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"peerDependencies": {
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"@launchdarkly/js-server-sdk-common": "2.x"
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"openai": ">= 4 < 7"
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}
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}

‎packages/ai-providers/server-ai-openai/src/OpenAIProvider.ts‎

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import { OpenAI } from 'openai';
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import { LDLogger } from '@launchdarkly/js-server-sdk-common';
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import {
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AIProvider,
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import { AIProvider } from '@launchdarkly/server-sdk-ai';
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import type {
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ChatResponse,
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LDAIConfig,
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LDAIMetrics,
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LDLogger,
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LDMessage,
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LDTokenUsage,
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} from '@launchdarkly/server-sdk-ai';

‎packages/ai-providers/server-ai-vercel/README.md‎

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For more information about using the LaunchDarkly AI SDK, see the [LaunchDarkly AI SDK documentation](https://github.com/launchdarkly/js-core/tree/main/packages/sdk/server-ai/README.md).
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## Vercel AI Provider Installation
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> **Important**: You will need to install additional provider packages for the specific AI models you want to use. The Vercel AI SDK requires separate packages for each provider.
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When creating a new Vercel AI model, LaunchDarkly uses an AI Config and the Vercel AI SDK's provider system to create a model instance. You should install all Vercel AI provider packages for each provider you plan to use in your AI Config to ensure they can be properly instantiated.
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### Installing a Vercel AI Provider
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To use specific AI models, install the corresponding provider package:
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```shell
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# For OpenAI models
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npm install @ai-sdk/openai --save
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# or
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yarn add @ai-sdk/openai
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```
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For a complete list of available providers and installation instructions, see the [Vercel AI SDK Providers documentation](https://sdk.vercel.ai/providers).
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## Advanced Usage
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For more control, you can use the Vercel AI provider package directly with LaunchDarkly configurations:

‎packages/ai-providers/server-ai-vercel/package.json‎

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],
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"author": "LaunchDarkly",
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"license": "Apache-2.0",
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"dependencies": {
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"@launchdarkly/server-sdk-ai": "^0.12.1"
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},
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"devDependencies": {
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"@ai-sdk/anthropic": "^2.0.0",
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"@ai-sdk/cohere": "^2.0.0",
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"@ai-sdk/google": "^2.0.0",
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"@ai-sdk/mistral": "^2.0.0",
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"@ai-sdk/openai": "^2.0.0",
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"@launchdarkly/js-server-sdk-common": "2.16.2",
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"@ai-sdk/provider": "^2.0.0",
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"@trivago/prettier-plugin-sort-imports": "^4.1.1",
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"@types/jest": "^29.5.3",
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"@typescript-eslint/eslint-plugin": "^6.20.0",
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"typescript": "5.1.6"
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},
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"peerDependencies": {
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"@ai-sdk/anthropic": "^2.0.0",
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"@ai-sdk/cohere": "^2.0.0",
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"@ai-sdk/google": "^2.0.0",
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"@ai-sdk/mistral": "^2.0.0",
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"@ai-sdk/openai": "^2.0.0",
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"@ai-sdk/provider": "^2.0.0",
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"@launchdarkly/server-sdk-ai": "^0.12.2",
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"ai": "^4.0.0 || ^5.0.0"
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},
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"peerDependenciesMeta": {
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"@ai-sdk/anthropic": {
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"optional": true
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},
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"@ai-sdk/cohere": {
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"optional": true
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},
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"@ai-sdk/google": {
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"optional": true
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},
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"@ai-sdk/mistral": {
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"optional": true
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},
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"@ai-sdk/openai": {
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"optional": true
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}
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}
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}

‎packages/ai-providers/server-ai-vercel/src/VercelProvider.ts‎

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import { generateText, LanguageModel } from 'ai';
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import {
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import { AIProvider } from '@launchdarkly/server-sdk-ai';
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import type {
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ChatResponse,
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LDAIConfig,
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LDAIMetrics,

‎packages/sdk/server-ai/package.json‎

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{
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"name": "@launchdarkly/server-sdk-ai",
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"version": "0.12.1",
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"version": "0.12.2",
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"description": "LaunchDarkly AI SDK for Server-Side JavaScript",
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"homepage": "https://github.com/launchdarkly/js-core/tree/main/packages/sdk/server-ai",
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"repository": {

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