Fix: validate input or throw when using MessagesPlaceholder #2874
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MessagesPlaceholder.formatMessages method
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MessagesPlaceholder.formatMessages method
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Oct 31, 2023
[](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [langchain](https://github.com/langchain-ai/langchainjs) | [`^0.0.165` -> `^0.0.175`](https://renovatebot.com/diffs/npm/langchain/0.0.165/0.0.175) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>langchain-ai/langchainjs (langchain)</summary> ### [`v0.0.175`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.175) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.174...0.0.175) #### What's Changed - Release 0.0.174 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3064](https://github.com/langchain-ai/langchainjs/pull/3064) - Adds basic critique revise cookbook by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3067](https://github.com/langchain-ai/langchainjs/pull/3067) - fix: calculate Milvus textlength in bytes by [@​kurtmoser](https://github.com/kurtmoser) in [https://github.com/langchain-ai/langchainjs/pull/3079](https://github.com/langchain-ai/langchainjs/pull/3079) - Add Convex integration by [@​xixixao](https://github.com/xixixao) in [https://github.com/langchain-ai/langchainjs/pull/2977](https://github.com/langchain-ai/langchainjs/pull/2977) - Make "IN-filters" possible for Vercel Postgres Metadata by [@​rbouschery](https://github.com/rbouschery) in [https://github.com/langchain-ai/langchainjs/pull/3040](https://github.com/langchain-ai/langchainjs/pull/3040) - Fix Convex typo by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3081](https://github.com/langchain-ai/langchainjs/pull/3081) #### New Contributors - [@​kurtmoser](https://github.com/kurtmoser) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3079](https://github.com/langchain-ai/langchainjs/pull/3079) - [@​xixixao](https://github.com/xixixao) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2977](https://github.com/langchain-ai/langchainjs/pull/2977) - [@​rbouschery](https://github.com/rbouschery) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3040](https://github.com/langchain-ai/langchainjs/pull/3040) **Full Changelog**: langchain-ai/langchainjs@0.0.174...0.0.175 ### [`v0.0.174`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.174) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.173...0.0.174) #### What's Changed - Release 0.0.173 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3054](https://github.com/langchain-ai/langchainjs/pull/3054) - fix: LANGCHAIN_VERBOSE=false does not turn off verbose logging. by [@​xianminx](https://github.com/xianminx) in [https://github.com/langchain-ai/langchainjs/pull/3057](https://github.com/langchain-ai/langchainjs/pull/3057) - Format by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3058](https://github.com/langchain-ai/langchainjs/pull/3058) - fix: improper markdown links by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3061](https://github.com/langchain-ai/langchainjs/pull/3061) - Adds MMR search for Pinecone by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3059](https://github.com/langchain-ai/langchainjs/pull/3059) - Allow vectorstore retrievers in SemanticSimilarityExampleSelector.ts by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3056](https://github.com/langchain-ai/langchainjs/pull/3056) - Add getOutputValue to langchain/memory exports by [@​mattmcgiv](https://github.com/mattmcgiv) in [https://github.com/langchain-ai/langchainjs/pull/3060](https://github.com/langchain-ai/langchainjs/pull/3060) #### New Contributors - [@​xianminx](https://github.com/xianminx) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3057](https://github.com/langchain-ai/langchainjs/pull/3057) - [@​mattmcgiv](https://github.com/mattmcgiv) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3060](https://github.com/langchain-ai/langchainjs/pull/3060) **Full Changelog**: langchain-ai/langchainjs@0.0.173...0.0.174 ### [`v0.0.173`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.173) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.172...0.0.173) #### What's Changed - Release 0.0.172 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3030](https://github.com/langchain-ai/langchainjs/pull/3030) - feat: base storage docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2984](https://github.com/langchain-ai/langchainjs/pull/2984) - Refactor docs, add Scrimba course by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3032](https://github.com/langchain-ai/langchainjs/pull/3032) - Hide storage docs for now by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3034](https://github.com/langchain-ai/langchainjs/pull/3034) - Update broken link on SerpApi documentation by [@​hilmanski](https://github.com/hilmanski) in [https://github.com/langchain-ai/langchainjs/pull/3033](https://github.com/langchain-ai/langchainjs/pull/3033) - Fix broken docs links by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3035](https://github.com/langchain-ai/langchainjs/pull/3035) - feat: added openai functions output parser class by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3029](https://github.com/langchain-ai/langchainjs/pull/3029) - feat: added agent xml output parser class by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3037](https://github.com/langchain-ai/langchainjs/pull/3037) - Use node: prefixed deps by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3038](https://github.com/langchain-ai/langchainjs/pull/3038) - Add cookbook section and rewrite-retrieve-read example by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3039](https://github.com/langchain-ai/langchainjs/pull/3039) - Update deps in cookbook by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3046](https://github.com/langchain-ai/langchainjs/pull/3046) - fix: remove .js from imports in examples by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3047](https://github.com/langchain-ai/langchainjs/pull/3047) - Fix: bug where pgvector cant add more than chunk size by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3049](https://github.com/langchain-ai/langchainjs/pull/3049) - Add new scrims to docs by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3050](https://github.com/langchain-ai/langchainjs/pull/3050) - Use prepared statements + add concurrency for Cassandra by [@​mieslep](https://github.com/mieslep) in [https://github.com/langchain-ai/langchainjs/pull/3043](https://github.com/langchain-ai/langchainjs/pull/3043) - fix: add util for formatting docs page content by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3048](https://github.com/langchain-ai/langchainjs/pull/3048) - Feat: runnable examples in agent how to docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3027](https://github.com/langchain-ai/langchainjs/pull/3027) - feat: rag fusion notebook by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3051](https://github.com/langchain-ai/langchainjs/pull/3051) #### New Contributors - [@​hilmanski](https://github.com/hilmanski) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3033](https://github.com/langchain-ai/langchainjs/pull/3033) - [@​mieslep](https://github.com/mieslep) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3043](https://github.com/langchain-ai/langchainjs/pull/3043) **Full Changelog**: langchain-ai/langchainjs@0.0.172...0.0.173 ### [`v0.0.172`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.172) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.171...0.0.172) #### What's Changed - Release 0.0.171 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3019](https://github.com/langchain-ai/langchainjs/pull/3019) - Avoid hardcoding embedding size to OpenAI dimensions in Qdrant client by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3024](https://github.com/langchain-ai/langchainjs/pull/3024) - Remove more hard-coded values by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3025](https://github.com/langchain-ai/langchainjs/pull/3025) - feat: added react output parser and tests by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3020](https://github.com/langchain-ai/langchainjs/pull/3020) - Feat: generic file system kv store by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3013](https://github.com/langchain-ai/langchainjs/pull/3013) - Respect organization in OpenAIEmbeddings by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/3028](https://github.com/langchain-ai/langchainjs/pull/3028) **Full Changelog**: langchain-ai/langchainjs@0.0.171...0.0.172 ### [`v0.0.171`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.171) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.170...0.0.171) #### What's Changed - Release 0.0.170 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2996](https://github.com/langchain-ai/langchainjs/pull/2996) - fix: updated title of docs and file name by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2997](https://github.com/langchain-ai/langchainjs/pull/2997) - Chore/neo4j security note by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2998](https://github.com/langchain-ai/langchainjs/pull/2998) - IterableReadableStream.fromReadableStream reader releaseLock by [@​AIXGEEK](https://github.com/AIXGEEK) in [https://github.com/langchain-ai/langchainjs/pull/3003](https://github.com/langchain-ai/langchainjs/pull/3003) - Ensure shell expansions are quoted in docs workflows. by [@​obi1kenobi](https://github.com/obi1kenobi) in [https://github.com/langchain-ai/langchainjs/pull/3014](https://github.com/langchain-ai/langchainjs/pull/3014) - Upgrade `actions/checkout` to v4 in all workflows. by [@​obi1kenobi](https://github.com/obi1kenobi) in [https://github.com/langchain-ai/langchainjs/pull/3015](https://github.com/langchain-ai/langchainjs/pull/3015) - fix top_p value by [@​hemanth](https://github.com/hemanth) in [https://github.com/langchain-ai/langchainjs/pull/3008](https://github.com/langchain-ai/langchainjs/pull/3008) - nit: add missing eslint disable any to runnable passthrough by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3017](https://github.com/langchain-ai/langchainjs/pull/3017) - Feat: added runnable examples to agent docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3000](https://github.com/langchain-ai/langchainjs/pull/3000) - WebPDFLoader: allow usage of custom pdfjs build by [@​DennisKo](https://github.com/DennisKo) in [https://github.com/langchain-ai/langchainjs/pull/3010](https://github.com/langchain-ai/langchainjs/pull/3010) - Feat/parent doc score threshold by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/3011](https://github.com/langchain-ai/langchainjs/pull/3011) - Llama2 node-llama-cpp chat module by [@​nigel-daniels](https://github.com/nigel-daniels) in [https://github.com/langchain-ai/langchainjs/pull/2999](https://github.com/langchain-ai/langchainjs/pull/2999) - Add support for cassandra filtering, update docs by [@​alexleventer](https://github.com/alexleventer) in [https://github.com/langchain-ai/langchainjs/pull/2967](https://github.com/langchain-ai/langchainjs/pull/2967) - feat: update mvi integration for more metadata types by [@​malandis](https://github.com/malandis) in [https://github.com/langchain-ai/langchainjs/pull/3002](https://github.com/langchain-ai/langchainjs/pull/3002) #### New Contributors - [@​AIXGEEK](https://github.com/AIXGEEK) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3003](https://github.com/langchain-ai/langchainjs/pull/3003) - [@​hemanth](https://github.com/hemanth) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3008](https://github.com/langchain-ai/langchainjs/pull/3008) - [@​DennisKo](https://github.com/DennisKo) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/3010](https://github.com/langchain-ai/langchainjs/pull/3010) **Full Changelog**: langchain-ai/langchainjs@0.0.170...0.0.171 ### [`v0.0.170`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.170) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.169...0.0.170) ##### What's Changed - Release 0.0.169 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2971](https://github.com/langchain-ai/langchainjs/pull/2971) - fix: show voe notebook in docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2973](https://github.com/langchain-ai/langchainjs/pull/2973) - Revert "fix: show voe notebook in docs" by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2974](https://github.com/langchain-ai/langchainjs/pull/2974) - fix: wildcard suffix for yielding keys by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2980](https://github.com/langchain-ai/langchainjs/pull/2980) - Feat/security notice openapi by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2959](https://github.com/langchain-ai/langchainjs/pull/2959) - feat: SQL chain security disclaimers to documentation & JSDoc by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2962](https://github.com/langchain-ai/langchainjs/pull/2962) - fix: update links to langchain org by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2983](https://github.com/langchain-ai/langchainjs/pull/2983) - Fixed order of LCEL menu and added tables in interface page by [@​tsensei](https://github.com/tsensei) in [https://github.com/langchain-ai/langchainjs/pull/2986](https://github.com/langchain-ai/langchainjs/pull/2986) - Add exports, small CI fix by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2993](https://github.com/langchain-ai/langchainjs/pull/2993) - Sveltekit - deployment guide by [@​SimonPrammer](https://github.com/SimonPrammer) in [https://github.com/langchain-ai/langchainjs/pull/2987](https://github.com/langchain-ai/langchainjs/pull/2987) - feat: added invoke method to chat model docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2981](https://github.com/langchain-ai/langchainjs/pull/2981) - fix: add missing codeblock import by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2994](https://github.com/langchain-ai/langchainjs/pull/2994) - Run format on docs PRs by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2995](https://github.com/langchain-ai/langchainjs/pull/2995) - Add ERNIE-Bot-4 from Baidu Wenxin Qianfan by [@​sunner](https://github.com/sunner) in [https://github.com/langchain-ai/langchainjs/pull/2969](https://github.com/langchain-ai/langchainjs/pull/2969) - Feat/upstash redis storage by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2963](https://github.com/langchain-ai/langchainjs/pull/2963) - feat: runnables powered agent by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2927](https://github.com/langchain-ai/langchainjs/pull/2927) - Feat: runnable assign by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2948](https://github.com/langchain-ai/langchainjs/pull/2948) - fix: ensure metadata is cast to jsonb for pgvector by [@​devinburnette](https://github.com/devinburnette) in [https://github.com/langchain-ai/langchainjs/pull/2949](https://github.com/langchain-ai/langchainjs/pull/2949) - Get transcript text by ID in AssemblyAI by [@​Swimburger](https://github.com/Swimburger) in [https://github.com/langchain-ai/langchainjs/pull/2582](https://github.com/langchain-ai/langchainjs/pull/2582) ##### New Contributors - [@​devinburnette](https://github.com/devinburnette) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2949](https://github.com/langchain-ai/langchainjs/pull/2949) **Full Changelog**: langchain-ai/langchainjs@0.0.169...0.0.170 ### [`v0.0.169`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.169) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.168...0.0.169) ##### What's Changed - Release 0.0.168 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2950](https://github.com/langchain-ai/langchainjs/pull/2950) - Add build + docs deploy step in GHA by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2957](https://github.com/langchain-ai/langchainjs/pull/2957) - Fixed typo in documentation by [@​tsensei](https://github.com/tsensei) in [https://github.com/langchain-ai/langchainjs/pull/2952](https://github.com/langchain-ai/langchainjs/pull/2952) - Feat: general security doc by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2958](https://github.com/langchain-ai/langchainjs/pull/2958) - zep: Add native MMR to Zep Retriever by [@​danielchalef](https://github.com/danielchalef) in [https://github.com/langchain-ai/langchainjs/pull/2955](https://github.com/langchain-ai/langchainjs/pull/2955) - add delete for faiss by [@​ewfian](https://github.com/ewfian) in [https://github.com/langchain-ai/langchainjs/pull/2924](https://github.com/langchain-ai/langchainjs/pull/2924) - Weaviate - throw error if storing vectors fails by [@​the-powerpointer](https://github.com/the-powerpointer) in [https://github.com/langchain-ai/langchainjs/pull/2942](https://github.com/langchain-ai/langchainjs/pull/2942) - Add missing CI action env by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2965](https://github.com/langchain-ai/langchainjs/pull/2965) - LLMonitor Callback Handler: fix tracking users on agents by [@​vincelwt](https://github.com/vincelwt) in [https://github.com/langchain-ai/langchainjs/pull/2941](https://github.com/langchain-ai/langchainjs/pull/2941) - Add YandexGPT Chat model by [@​tyumentsev4](https://github.com/tyumentsev4) in [https://github.com/langchain-ai/langchainjs/pull/2930](https://github.com/langchain-ai/langchainjs/pull/2930) - Remove preview deploy for now by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2968](https://github.com/langchain-ai/langchainjs/pull/2968) - Feat: violations of expectations chain by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2945](https://github.com/langchain-ai/langchainjs/pull/2945) - Adds base URL support for Cloudflare WorkersAI by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2970](https://github.com/langchain-ai/langchainjs/pull/2970) ##### New Contributors - [@​tsensei](https://github.com/tsensei) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2952](https://github.com/langchain-ai/langchainjs/pull/2952) **Full Changelog**: langchain-ai/langchainjs@0.0.168...0.0.169 ### [`v0.0.168`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.168) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.167...0.0.168) #### What's Changed - Release 0.0.167 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2916](https://github.com/langchain-ai/langchainjs/pull/2916) - Mark the docs scripts files as executable. by [@​obi1kenobi](https://github.com/obi1kenobi) in [https://github.com/langchain-ai/langchainjs/pull/2932](https://github.com/langchain-ai/langchainjs/pull/2932) - Add more memory to linter by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2934](https://github.com/langchain-ai/langchainjs/pull/2934) - Update repo path to point to `langchain-ai` GitHub org. by [@​obi1kenobi](https://github.com/obi1kenobi) in [https://github.com/langchain-ai/langchainjs/pull/2933](https://github.com/langchain-ai/langchainjs/pull/2933) - fix: update llm_streaming_stream_method.ts doc by [@​cjbt](https://github.com/cjbt) in [https://github.com/langchain-ai/langchainjs/pull/2929](https://github.com/langchain-ai/langchainjs/pull/2929) - Make format_instructions an optional argument in chat agent by [@​EKMeyerson](https://github.com/EKMeyerson) in [https://github.com/langchain-ai/langchainjs/pull/2931](https://github.com/langchain-ai/langchainjs/pull/2931) - Update graph_db_custom_prompt.ts by [@​tomasonjo](https://github.com/tomasonjo) in [https://github.com/langchain-ai/langchainjs/pull/2920](https://github.com/langchain-ai/langchainjs/pull/2920) - Simplify docs structure, remove skeleton by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2935](https://github.com/langchain-ai/langchainjs/pull/2935) - Run build in series by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2936](https://github.com/langchain-ai/langchainjs/pull/2936) - Remove snippets by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2937](https://github.com/langchain-ai/langchainjs/pull/2937) - Use SWC to generate AST by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2939](https://github.com/langchain-ai/langchainjs/pull/2939) - WIP: add runManager.handleLLMNewToken missing call by [@​ivoneijr](https://github.com/ivoneijr) in [https://github.com/langchain-ai/langchainjs/pull/2910](https://github.com/langchain-ai/langchainjs/pull/2910) - Run exports tests in parallel on GitHub CI. by [@​obi1kenobi](https://github.com/obi1kenobi) in [https://github.com/langchain-ai/langchainjs/pull/2944](https://github.com/langchain-ai/langchainjs/pull/2944) - feat: add CloseVector as VectorStore provider by [@​jo32](https://github.com/jo32) in [https://github.com/langchain-ai/langchainjs/pull/2832](https://github.com/langchain-ai/langchainjs/pull/2832) - Feature: Add Fake integration support to match Python library by [@​frankolson](https://github.com/frankolson) in [https://github.com/langchain-ai/langchainjs/pull/2928](https://github.com/langchain-ai/langchainjs/pull/2928) - Adds Cloudflare Workers AI LLM and chat model by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2923](https://github.com/langchain-ai/langchainjs/pull/2923) #### New Contributors - [@​cjbt](https://github.com/cjbt) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2929](https://github.com/langchain-ai/langchainjs/pull/2929) - [@​EKMeyerson](https://github.com/EKMeyerson) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2931](https://github.com/langchain-ai/langchainjs/pull/2931) - [@​jo32](https://github.com/jo32) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2832](https://github.com/langchain-ai/langchainjs/pull/2832) - [@​frankolson](https://github.com/frankolson) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2928](https://github.com/langchain-ai/langchainjs/pull/2928) **Full Changelog**: langchain-ai/langchainjs@0.0.167...0.0.168 ### [`v0.0.167`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.167) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.166...0.0.167) #### What's Changed - Release 0.0.166 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2894](https://github.com/langchain-ai/langchainjs/pull/2894) - elasticsearch: customize user-agent for es client by [@​TattdCodeMonkey](https://github.com/TattdCodeMonkey) in [https://github.com/langchain-ai/langchainjs/pull/2897](https://github.com/langchain-ai/langchainjs/pull/2897) - Chore: update SQL popular chain docs to use runnables by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2877](https://github.com/langchain-ai/langchainjs/pull/2877) - fix: hide from sidebar by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2909](https://github.com/langchain-ai/langchainjs/pull/2909) - Chore: conversational QA docs to use Runnables by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2890](https://github.com/langchain-ai/langchainjs/pull/2890) - refactor: openai function calling docs by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2893](https://github.com/langchain-ai/langchainjs/pull/2893) - chore: added why use LCEL doc by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2900](https://github.com/langchain-ai/langchainjs/pull/2900) - fix: batch embedding queries, fix get client in tests by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2908](https://github.com/langchain-ai/langchainjs/pull/2908) - Improve Cassandra vector store docs by [@​alexleventer](https://github.com/alexleventer) in [https://github.com/langchain-ai/langchainjs/pull/2903](https://github.com/langchain-ai/langchainjs/pull/2903) - feat: Add Neo4j vector store by [@​easwee](https://github.com/easwee) in [https://github.com/langchain-ai/langchainjs/pull/2852](https://github.com/langchain-ai/langchainjs/pull/2852) - Add YandexGPT LLM model by [@​tyumentsev4](https://github.com/tyumentsev4) in [https://github.com/langchain-ai/langchainjs/pull/2906](https://github.com/langchain-ai/langchainjs/pull/2906) - Allow ParentDocumentRetriever to subclass MultiVectorRetriever by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2853](https://github.com/langchain-ai/langchainjs/pull/2853) - Add neo4j vector index docs by [@​tomasonjo](https://github.com/tomasonjo) in [https://github.com/langchain-ai/langchainjs/pull/2895](https://github.com/langchain-ai/langchainjs/pull/2895) - Docs updates by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2915](https://github.com/langchain-ai/langchainjs/pull/2915) - Add Vercel KV base store by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2912](https://github.com/langchain-ai/langchainjs/pull/2912) #### New Contributors - [@​TattdCodeMonkey](https://github.com/TattdCodeMonkey) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2897](https://github.com/langchain-ai/langchainjs/pull/2897) **Full Changelog**: langchain-ai/langchainjs@0.0.166...0.0.167 ### [`v0.0.166`](https://github.com/langchain-ai/langchainjs/releases/tag/0.0.166) [Compare Source](https://github.com/langchain-ai/langchainjs/compare/0.0.165...0.0.166) #### What's Changed - Release 0.0.165 by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2870](https://github.com/langchain-ai/langchainjs/pull/2870) - Update docs for model streaming by [@​jacoblee93](https://github.com/jacoblee93) in [https://github.com/langchain-ai/langchainjs/pull/2887](https://github.com/langchain-ai/langchainjs/pull/2887) - Remote Runnables by [@​efriis](https://github.com/efriis) in [https://github.com/langchain-ai/langchainjs/pull/2828](https://github.com/langchain-ai/langchainjs/pull/2828) - added force default filter option to mergeFilters by [@​valdo99](https://github.com/valdo99) in [https://github.com/langchain-ai/langchainjs/pull/2882](https://github.com/langchain-ai/langchainjs/pull/2882) - Implement max marginal relevance search for Supabase vector store by [@​carlobeltrame](https://github.com/carlobeltrame) in [https://github.com/langchain-ai/langchainjs/pull/2800](https://github.com/langchain-ai/langchainjs/pull/2800) - feat: add momento vector index as a vector store provider by [@​malandis](https://github.com/malandis) in [https://github.com/langchain-ai/langchainjs/pull/2851](https://github.com/langchain-ai/langchainjs/pull/2851) - Fix: validate input or throw when using MessagesPlaceholder by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2874](https://github.com/langchain-ai/langchainjs/pull/2874) - Feat: added new advanced convo qa runnables use case doc by [@​bracesproul](https://github.com/bracesproul) in [https://github.com/langchain-ai/langchainjs/pull/2889](https://github.com/langchain-ai/langchainjs/pull/2889) - Unstructured API - additional props by [@​perstarkse](https://github.com/perstarkse) in [https://github.com/langchain-ai/langchainjs/pull/2888](https://github.com/langchain-ai/langchainjs/pull/2888) - Add AnthropicFunctionsBedrock by [@​efriis](https://github.com/efriis) in [https://github.com/langchain-ai/langchainjs/pull/2892](https://github.com/langchain-ai/langchainjs/pull/2892) #### New Contributors - [@​valdo99](https://github.com/valdo99) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2882](https://github.com/langchain-ai/langchainjs/pull/2882) - [@​carlobeltrame](https://github.com/carlobeltrame) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2800](https://github.com/langchain-ai/langchainjs/pull/2800) - [@​perstarkse](https://github.com/perstarkse) made their first contribution in [https://github.com/langchain-ai/langchainjs/pull/2888](https://github.com/langchain-ai/langchainjs/pull/2888) **Full Changelog**: langchain-ai/langchainjs@0.0.165...0.0.166 </details> --- ### Configuration 📅 **Schedule**: Branch creation - 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Closes #2871
Throw when input passed to
MessagesPlaceholder.formatMessagesis not of correct type