From 030607b9016a9eec8dabfc89b0d6b88001cedcc9 Mon Sep 17 00:00:00 2001
From: Jacob Lee <jacoblee93@gmail.com>
Date: Tue, 11 Jun 2024 11:16:52 -0700
Subject: [PATCH 1/2] Unstructured in memory loader (#5726)

* feat: add in-memory option

* feat: add in memory community

* fix: object destructure fix

* Fix lint

* Rename args and add to docstring

* Export types

---------

Co-authored-by: andrewdoro <elfandreis@gmail.com>
---
 .../src/document_loaders/fs/unstructured.ts   | 46 ++++++++++----
 .../tests/unstructured.int.test.ts            | 29 +++++++++
 libs/langchain-community/.eslintrc.cjs        |  1 +
 .../src/document_loaders/fs/unstructured.ts   | 60 +++++++++++++------
 .../tests/unstructured.int.test.ts            | 29 +++++++++
 5 files changed, 138 insertions(+), 27 deletions(-)

diff --git a/langchain/src/document_loaders/fs/unstructured.ts b/langchain/src/document_loaders/fs/unstructured.ts
index edb60008aca1..e3b62a9cfbc3 100644
--- a/langchain/src/document_loaders/fs/unstructured.ts
+++ b/langchain/src/document_loaders/fs/unstructured.ts
@@ -126,6 +126,11 @@ type UnstructuredDirectoryLoaderOptions = UnstructuredLoaderOptions & {
   unknown?: UnknownHandling;
 };
 
+type UnstructuredMemoryLoaderOptions = {
+  buffer: Buffer;
+  fileName: string;
+};
+
 /**
  * @deprecated - Import from "@langchain/community/document_loaders/fs/unstructured" instead. This entrypoint will be removed in 0.3.0.
  *
@@ -139,6 +144,10 @@ type UnstructuredDirectoryLoaderOptions = UnstructuredLoaderOptions & {
 export class UnstructuredLoader extends BaseDocumentLoader {
   public filePath: string;
 
+  private buffer?: Buffer;
+
+  private fileName?: string;
+
   private apiUrl = "https://api.unstructured.io/general/v0/general";
 
   private apiKey?: string;
@@ -175,7 +184,9 @@ export class UnstructuredLoader extends BaseDocumentLoader {
   private maxCharacters?: number;
 
   constructor(
-    filePathOrLegacyApiUrl: string,
+    filePathOrLegacyApiUrlOrMemoryBuffer:
+      | string
+      | UnstructuredMemoryLoaderOptions,
     optionsOrLegacyFilePath: UnstructuredLoaderOptions | string = {}
   ) {
     super();
@@ -183,11 +194,20 @@ export class UnstructuredLoader extends BaseDocumentLoader {
     // Temporary shim to avoid breaking existing users
     // Remove when API keys are enforced by Unstructured and existing code will break anyway
     const isLegacySyntax = typeof optionsOrLegacyFilePath === "string";
-    if (isLegacySyntax) {
+    const isMemorySyntax =
+      typeof filePathOrLegacyApiUrlOrMemoryBuffer === "object";
+
+    if (isMemorySyntax) {
+      this.buffer = filePathOrLegacyApiUrlOrMemoryBuffer.buffer;
+      this.fileName = filePathOrLegacyApiUrlOrMemoryBuffer.fileName;
+    } else if (isLegacySyntax) {
       this.filePath = optionsOrLegacyFilePath;
-      this.apiUrl = filePathOrLegacyApiUrl;
+      this.apiUrl = filePathOrLegacyApiUrlOrMemoryBuffer;
     } else {
-      this.filePath = filePathOrLegacyApiUrl;
+      this.filePath = filePathOrLegacyApiUrlOrMemoryBuffer;
+    }
+
+    if (!isLegacySyntax) {
       const options = optionsOrLegacyFilePath;
       this.apiKey = options.apiKey;
       this.apiUrl = options.apiUrl ?? this.apiUrl;
@@ -209,14 +229,20 @@ export class UnstructuredLoader extends BaseDocumentLoader {
   }
 
   async _partition() {
-    const { readFile, basename } = await this.imports();
+    let { buffer } = this;
+    let { fileName } = this;
+
+    if (!buffer) {
+      const { readFile, basename } = await this.imports();
 
-    const buffer = await readFile(this.filePath);
-    const fileName = basename(this.filePath);
+      buffer = await readFile(this.filePath);
+      fileName = basename(this.filePath);
+
+      // I'm aware this reads the file into memory first, but we have lots of work
+      // to do on then consuming Documents in a streaming fashion anyway, so not
+      // worried about this for now.
+    }
 
-    // I'm aware this reads the file into memory first, but we have lots of work
-    // to do on then consuming Documents in a streaming fashion anyway, so not
-    // worried about this for now.
     const formData = new FormData();
     formData.append("files", new Blob([buffer]), fileName);
     formData.append("strategy", this.strategy);
diff --git a/langchain/src/document_loaders/tests/unstructured.int.test.ts b/langchain/src/document_loaders/tests/unstructured.int.test.ts
index e30913e10a2d..b0b0712118a6 100644
--- a/langchain/src/document_loaders/tests/unstructured.int.test.ts
+++ b/langchain/src/document_loaders/tests/unstructured.int.test.ts
@@ -3,6 +3,7 @@
 
 import * as url from "node:url";
 import * as path from "node:path";
+import { readFile } from "node:fs/promises";
 import { test, expect } from "@jest/globals";
 import {
   UnstructuredDirectoryLoader,
@@ -29,6 +30,34 @@ test.skip("Test Unstructured base loader", async () => {
   }
 });
 
+test.skip("Test Unstructured base loader with buffer", async () => {
+  const filePath = path.resolve(
+    path.dirname(url.fileURLToPath(import.meta.url)),
+    "./example_data/example.txt"
+  );
+
+  const options = {
+    apiKey: process.env.UNSTRUCTURED_API_KEY!,
+  };
+
+  const buffer = await readFile(filePath);
+  const fileName = "example.txt";
+
+  const loader = new UnstructuredLoader(
+    {
+      buffer,
+      fileName,
+    },
+    options
+  );
+  const docs = await loader.load();
+
+  expect(docs.length).toBe(3);
+  for (const doc of docs) {
+    expect(typeof doc.pageContent).toBe("string");
+  }
+});
+
 test.skip("Test Unstructured base loader with fast strategy", async () => {
   const filePath = path.resolve(
     path.dirname(url.fileURLToPath(import.meta.url)),
diff --git a/libs/langchain-community/.eslintrc.cjs b/libs/langchain-community/.eslintrc.cjs
index 459826a03a17..fea6aa3b0a6c 100644
--- a/libs/langchain-community/.eslintrc.cjs
+++ b/libs/langchain-community/.eslintrc.cjs
@@ -64,6 +64,7 @@ module.exports = {
     "prefer-rest-params": 0,
     "new-cap": ["error", { properties: false, capIsNew: false }],
     "arrow-body-style": 0,
+    "prefer-destructuring": 0
   },
   overrides: [
     {
diff --git a/libs/langchain-community/src/document_loaders/fs/unstructured.ts b/libs/langchain-community/src/document_loaders/fs/unstructured.ts
index f9040b11110a..62e7053f42b2 100644
--- a/libs/langchain-community/src/document_loaders/fs/unstructured.ts
+++ b/libs/langchain-community/src/document_loaders/fs/unstructured.ts
@@ -10,7 +10,7 @@ import {
 } from "langchain/document_loaders/fs/directory";
 import { BaseDocumentLoader } from "@langchain/core/document_loaders/base";
 
-const UNSTRUCTURED_API_FILETYPES = [
+export const UNSTRUCTURED_API_FILETYPES = [
   ".txt",
   ".text",
   ".pdf",
@@ -94,7 +94,7 @@ export type SkipInferTableTypes =
 /**
  * Set the chunking_strategy to chunk text into larger or smaller elements. Defaults to None with optional arg of by_title
  */
-type ChunkingStrategy = "None" | "by_title";
+export type ChunkingStrategy = "None" | "by_title";
 
 export type UnstructuredLoaderOptions = {
   apiKey?: string;
@@ -115,11 +115,16 @@ export type UnstructuredLoaderOptions = {
   maxCharacters?: number;
 };
 
-type UnstructuredDirectoryLoaderOptions = UnstructuredLoaderOptions & {
+export type UnstructuredDirectoryLoaderOptions = UnstructuredLoaderOptions & {
   recursive?: boolean;
   unknown?: UnknownHandling;
 };
 
+export type UnstructuredMemoryLoaderOptions = {
+  buffer: Buffer;
+  fileName: string;
+};
+
 /**
  * A document loader that uses the Unstructured API to load unstructured
  * documents. It supports both the new syntax with options object and the
@@ -127,10 +132,17 @@ type UnstructuredDirectoryLoaderOptions = UnstructuredLoaderOptions & {
  * partitioning request to the Unstructured API and retrieves the
  * partitioned elements. It creates a Document instance for each element
  * and returns an array of Document instances.
+ *
+ * It accepts either a filepath or an object containing a buffer and a filename
+ * as input.
  */
 export class UnstructuredLoader extends BaseDocumentLoader {
   public filePath: string;
 
+  private buffer?: Buffer;
+
+  private fileName?: string;
+
   private apiUrl = "https://api.unstructured.io/general/v0/general";
 
   private apiKey?: string;
@@ -167,20 +179,28 @@ export class UnstructuredLoader extends BaseDocumentLoader {
   private maxCharacters?: number;
 
   constructor(
-    filePathOrLegacyApiUrl: string,
-    optionsOrLegacyFilePath: UnstructuredLoaderOptions | string = {}
+    filepathOrBufferOptions: string | UnstructuredMemoryLoaderOptions,
+    unstructuredOptions: UnstructuredLoaderOptions | string = {}
   ) {
     super();
 
     // Temporary shim to avoid breaking existing users
     // Remove when API keys are enforced by Unstructured and existing code will break anyway
-    const isLegacySyntax = typeof optionsOrLegacyFilePath === "string";
-    if (isLegacySyntax) {
-      this.filePath = optionsOrLegacyFilePath;
-      this.apiUrl = filePathOrLegacyApiUrl;
+    const isLegacySyntax = typeof unstructuredOptions === "string";
+    const isMemorySyntax = typeof filepathOrBufferOptions === "object";
+
+    if (isMemorySyntax) {
+      this.buffer = filepathOrBufferOptions.buffer;
+      this.fileName = filepathOrBufferOptions.fileName;
+    } else if (isLegacySyntax) {
+      this.filePath = unstructuredOptions;
+      this.apiUrl = filepathOrBufferOptions;
     } else {
-      this.filePath = filePathOrLegacyApiUrl;
-      const options = optionsOrLegacyFilePath;
+      this.filePath = filepathOrBufferOptions;
+    }
+
+    if (!isLegacySyntax) {
+      const options = unstructuredOptions;
       this.apiKey =
         options.apiKey ?? getEnvironmentVariable("UNSTRUCTURED_API_KEY");
       this.apiUrl =
@@ -205,14 +225,20 @@ export class UnstructuredLoader extends BaseDocumentLoader {
   }
 
   async _partition() {
-    const { readFile, basename } = await this.imports();
+    let buffer = this.buffer;
+    let fileName = this.fileName;
+
+    if (!buffer) {
+      const { readFile, basename } = await this.imports();
 
-    const buffer = await readFile(this.filePath);
-    const fileName = basename(this.filePath);
+      buffer = await readFile(this.filePath);
+      fileName = basename(this.filePath);
+
+      // I'm aware this reads the file into memory first, but we have lots of work
+      // to do on then consuming Documents in a streaming fashion anyway, so not
+      // worried about this for now.
+    }
 
-    // I'm aware this reads the file into memory first, but we have lots of work
-    // to do on then consuming Documents in a streaming fashion anyway, so not
-    // worried about this for now.
     const formData = new FormData();
     formData.append("files", new Blob([buffer]), fileName);
     formData.append("strategy", this.strategy);
diff --git a/libs/langchain-community/src/document_loaders/tests/unstructured.int.test.ts b/libs/langchain-community/src/document_loaders/tests/unstructured.int.test.ts
index e30913e10a2d..b0b0712118a6 100644
--- a/libs/langchain-community/src/document_loaders/tests/unstructured.int.test.ts
+++ b/libs/langchain-community/src/document_loaders/tests/unstructured.int.test.ts
@@ -3,6 +3,7 @@
 
 import * as url from "node:url";
 import * as path from "node:path";
+import { readFile } from "node:fs/promises";
 import { test, expect } from "@jest/globals";
 import {
   UnstructuredDirectoryLoader,
@@ -29,6 +30,34 @@ test.skip("Test Unstructured base loader", async () => {
   }
 });
 
+test.skip("Test Unstructured base loader with buffer", async () => {
+  const filePath = path.resolve(
+    path.dirname(url.fileURLToPath(import.meta.url)),
+    "./example_data/example.txt"
+  );
+
+  const options = {
+    apiKey: process.env.UNSTRUCTURED_API_KEY!,
+  };
+
+  const buffer = await readFile(filePath);
+  const fileName = "example.txt";
+
+  const loader = new UnstructuredLoader(
+    {
+      buffer,
+      fileName,
+    },
+    options
+  );
+  const docs = await loader.load();
+
+  expect(docs.length).toBe(3);
+  for (const doc of docs) {
+    expect(typeof doc.pageContent).toBe("string");
+  }
+});
+
 test.skip("Test Unstructured base loader with fast strategy", async () => {
   const filePath = path.resolve(
     path.dirname(url.fileURLToPath(import.meta.url)),

From 99608992d7660e9b59c0ba615e539dff56421906 Mon Sep 17 00:00:00 2001
From: Brace Sproul <braceasproul@gmail.com>
Date: Tue, 11 Jun 2024 11:28:17 -0700
Subject: [PATCH 2/2] infra[minor]: Add vertexai to latest/lowest ci (#5727)

---
 .github/workflows/compatibility.yml           | 65 ++++++++++++-------
 dependency_range_tests/docker-compose.yml     | 42 ++++++++----
 .../scripts/vertexai/node/package.json        |  9 +++
 .../node/update_resolutions_lowest.js         | 36 ++++++++++
 .../scripts/vertexai/node/yarn.lock           | 22 +++++++
 .../scripts/vertexai/test-with-latest-deps.sh | 16 +++++
 .../scripts/vertexai/test-with-lowest-deps.sh | 27 ++++++++
 7 files changed, 182 insertions(+), 35 deletions(-)
 create mode 100644 dependency_range_tests/scripts/vertexai/node/package.json
 create mode 100644 dependency_range_tests/scripts/vertexai/node/update_resolutions_lowest.js
 create mode 100644 dependency_range_tests/scripts/vertexai/node/yarn.lock
 create mode 100644 dependency_range_tests/scripts/vertexai/test-with-latest-deps.sh
 create mode 100644 dependency_range_tests/scripts/vertexai/test-with-lowest-deps.sh

diff --git a/.github/workflows/compatibility.yml b/.github/workflows/compatibility.yml
index 6aacdab1f1b0..d8ab26254f31 100644
--- a/.github/workflows/compatibility.yml
+++ b/.github/workflows/compatibility.yml
@@ -29,7 +29,7 @@ env:
 # so that they run in parallel instead of overwhelming the default 2 CPU runner.
 jobs:
   # LangChain
-  test-langchain-with-latest-deps:
+  langchain-latest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -38,14 +38,10 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: "yarn"
-      - name: Install dependencies
-        run: yarn install --immutable
-      - name: Build `@langchain/standard-tests`
-        run: yarn build --filter=@langchain/standard-tests
       - name: Test LangChain with latest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-langchain-with-latest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run langchain-latest-deps
 
-  test-langchain-with-lowest-deps:
+  langchain-lowest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -54,15 +50,11 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: "yarn"
-      - name: Install dependencies
-        run: yarn install --immutable
-      - name: Build `@langchain/standard-tests`
-        run: yarn build --filter=@langchain/standard-tests
       - name: Test LangChain with lowest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-langchain-with-lowest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run langchain-lowest-deps
 
   # Community
-  test-community-with-latest-deps:
+  community-latest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -76,9 +68,9 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/community` with latest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-community-with-latest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run community-latest-deps
 
-  test-community-with-lowest-deps:
+  community-lowest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -92,10 +84,10 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/community` with lowest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-community-with-lowest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run community-lowest-deps
 
   # OpenAI
-  test-openai-with-latest-deps:
+  openai-latest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -109,9 +101,9 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/openai` with latest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-openai-with-latest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run openai-latest-deps
 
-  test-openai-with-lowest-deps:
+  openai-lowest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -125,10 +117,10 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/openai` with lowest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-openai-with-lowest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run openai-lowest-deps
 
   # Anthropic
-  test-anthropic-with-latest-deps:
+  anthropic-latest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -142,9 +134,9 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/anthropic` with latest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-anthropic-with-latest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run anthropic-latest-deps
 
-  test-anthropic-with-lowest-deps:
+  anthropic-lowest-deps:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -158,4 +150,29 @@ jobs:
       - name: Build `@langchain/standard-tests`
         run: yarn build --filter=@langchain/standard-tests
       - name: Test `@langchain/anthropic` with lowest deps
-        run: docker compose -f dependency_range_tests/docker-compose.yml run test-anthropic-with-lowest-deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run anthropic-lowest-deps
+
+  # VertexAI
+  vertexai-latest-deps:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: "yarn"
+      - name: Test `@langchain/google-vertexai` with latest deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run vertexai-latest-deps
+
+  vertexai-lowest-deps:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js ${{ env.NODE_VERSION }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ env.NODE_VERSION }}
+          cache: "yarn"
+      - name: Test `@langchain/google-vertexai` with lowest deps
+        run: docker compose -f dependency_range_tests/docker-compose.yml run vertexai-lowest-deps
diff --git a/dependency_range_tests/docker-compose.yml b/dependency_range_tests/docker-compose.yml
index b5729ae14e74..9c2f4ebdbc28 100644
--- a/dependency_range_tests/docker-compose.yml
+++ b/dependency_range_tests/docker-compose.yml
@@ -1,7 +1,7 @@
 version: "3"
 services:
   # LangChain
-  test-langchain-with-latest-deps:
+  langchain-latest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -12,7 +12,7 @@ services:
       - ../langchain:/langchain
       - ./scripts:/scripts
     command: bash /scripts/langchain/test-with-latest-deps.sh
-  test-langchain-with-lowest-deps:
+  langchain-lowest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -20,15 +20,12 @@ services:
       COHERE_API_KEY: ${COHERE_API_KEY}
     working_dir: /app
     volumes:
-      - ../turbo.json:/turbo.json
-      - ../package.json:/package.json
-      - ../libs/langchain-standard-tests:/libs/langchain-standard-tests
       - ../langchain:/langchain
       - ./scripts:/scripts
     command: bash /scripts/langchain/test-with-lowest-deps.sh
   
   # Community
-  test-community-with-latest-deps:
+  community-latest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -42,7 +39,7 @@ services:
       - ../libs/langchain-community:/libs/langchain-community
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/community/test-with-latest-deps.sh
-  test-community-with-lowest-deps:
+  community-lowest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -58,7 +55,7 @@ services:
     command: bash /scripts/with_standard_tests/community/test-with-lowest-deps.sh
 
   # OpenAI
-  test-openai-with-latest-deps:
+  openai-latest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -72,7 +69,7 @@ services:
       - ../libs/langchain-openai:/libs/langchain-openai
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/openai/test-with-latest-deps.sh
-  test-openai-with-lowest-deps:
+  openai-lowest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -88,7 +85,7 @@ services:
     command: bash /scripts/with_standard_tests/openai/test-with-lowest-deps.sh
 
   # Anthropic
-  test-anthropic-with-latest-deps:
+  anthropic-latest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -102,7 +99,7 @@ services:
       - ../libs/langchain-anthropic:/libs/langchain-anthropic
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/anthropic/test-with-latest-deps.sh
-  test-anthropic-with-lowest-deps:
+  anthropic-lowest-deps:
     image: node:18
     environment:
       PUPPETEER_SKIP_DOWNLOAD: "true"
@@ -116,3 +113,26 @@ services:
       - ../libs/langchain-anthropic:/libs/langchain-anthropic
       - ./scripts:/scripts
     command: bash /scripts/with_standard_tests/anthropic/test-with-lowest-deps.sh
+
+  # VertexAI
+  vertexai-latest-deps:
+    image: node:18
+    environment:
+      PUPPETEER_SKIP_DOWNLOAD: "true"
+      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: "true"
+    working_dir: /app
+    volumes:
+      - ../libs/langchain-google-vertexai:/libs/langchain-google-vertexai
+      - ./scripts:/scripts
+    command: bash /scripts/vertexai/test-with-latest-deps.sh
+  vertexai-lowest-deps:
+    image: node:18
+    environment:
+      PUPPETEER_SKIP_DOWNLOAD: "true"
+      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: "true"
+    working_dir: /app
+    volumes:
+      - ../libs/langchain-google-vertexai:/libs/langchain-google-vertexai
+      - ./scripts:/scripts
+    command: bash /scripts/vertexai/test-with-lowest-deps.sh
+  
\ No newline at end of file
diff --git a/dependency_range_tests/scripts/vertexai/node/package.json b/dependency_range_tests/scripts/vertexai/node/package.json
new file mode 100644
index 000000000000..a4622fc74597
--- /dev/null
+++ b/dependency_range_tests/scripts/vertexai/node/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "dependency-range-tests",
+  "version": "0.0.0",
+  "private": true,
+  "description": "Tests dependency ranges for LangChain.",
+  "dependencies": {
+    "semver": "^7.5.4"
+  }
+}
\ No newline at end of file
diff --git a/dependency_range_tests/scripts/vertexai/node/update_resolutions_lowest.js b/dependency_range_tests/scripts/vertexai/node/update_resolutions_lowest.js
new file mode 100644
index 000000000000..b8768d8a7156
--- /dev/null
+++ b/dependency_range_tests/scripts/vertexai/node/update_resolutions_lowest.js
@@ -0,0 +1,36 @@
+const fs = require("fs");
+const semver = require("semver");
+
+const communityPackageJsonPath = "package.json";
+
+const currentPackageJson = JSON.parse(fs.readFileSync(communityPackageJsonPath));
+
+if (currentPackageJson.dependencies["@langchain/core"] && !currentPackageJson.dependencies["@langchain/core"].includes("rc")) {
+  const minVersion = semver.minVersion(
+    currentPackageJson.dependencies["@langchain/core"]
+  ).version;
+  currentPackageJson.overrides = {
+    ...currentPackageJson.overrides,
+    "@langchain/core": minVersion,
+  };
+  currentPackageJson.dependencies = {
+    ...currentPackageJson.dependencies,
+    "@langchain/core": minVersion,
+  };
+}
+
+if (currentPackageJson.dependencies["@langchain/google-gauth"] && !currentPackageJson.dependencies["@langchain/google-gauth"].includes("rc")) {
+  const minVersion = semver.minVersion(
+    currentPackageJson.dependencies["@langchain/google-gauth"]
+  ).version;
+  currentPackageJson.overrides = {
+    ...currentPackageJson.overrides,
+    "@langchain/google-gauth": minVersion,
+  };
+  currentPackageJson.dependencies = {
+    ...currentPackageJson.dependencies,
+    "@langchain/google-gauth": minVersion,
+  };
+}
+
+fs.writeFileSync(communityPackageJsonPath, JSON.stringify(currentPackageJson, null, 2));
diff --git a/dependency_range_tests/scripts/vertexai/node/yarn.lock b/dependency_range_tests/scripts/vertexai/node/yarn.lock
new file mode 100644
index 000000000000..50ac73caa812
--- /dev/null
+++ b/dependency_range_tests/scripts/vertexai/node/yarn.lock
@@ -0,0 +1,22 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+lru-cache@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
+  integrity sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==
+  dependencies:
+    yallist "^4.0.0"
+
+semver@^7.5.4:
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
+  integrity sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==
+  dependencies:
+    lru-cache "^6.0.0"
+
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
diff --git a/dependency_range_tests/scripts/vertexai/test-with-latest-deps.sh b/dependency_range_tests/scripts/vertexai/test-with-latest-deps.sh
new file mode 100644
index 000000000000..e5eb224b71e1
--- /dev/null
+++ b/dependency_range_tests/scripts/vertexai/test-with-latest-deps.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+set -euxo pipefail
+
+export CI=true
+
+# enable extended globbing for omitting build artifacts
+shopt -s extglob
+
+# avoid copying build artifacts from the host
+cp -r ../libs/langchain-google-vertexai/!(node_modules|dist|dist-cjs|dist-esm|build|.next|.turbo) ./
+
+yarn
+
+# Check the test command completes successfully
+NODE_OPTIONS=--experimental-vm-modules yarn run jest --testPathIgnorePatterns=\\.int\\.test.ts --testTimeout 30000 --maxWorkers=50%
diff --git a/dependency_range_tests/scripts/vertexai/test-with-lowest-deps.sh b/dependency_range_tests/scripts/vertexai/test-with-lowest-deps.sh
new file mode 100644
index 000000000000..9a95587c845c
--- /dev/null
+++ b/dependency_range_tests/scripts/vertexai/test-with-lowest-deps.sh
@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+set -euxo pipefail
+
+export CI=true
+
+# enable extended globbing for omitting build artifacts
+shopt -s extglob
+
+# avoid copying build artifacts from the host
+cp -r ../libs/langchain-google-vertexai/!(node_modules|dist|dist-cjs|dist-esm|build|.next|.turbo) ./
+
+mkdir -p /updater_script
+cp -r /scripts/vertexai/node/!(node_modules|dist|dist-cjs|dist-esm|build|.next|.turbo) /updater_script/
+
+cd /updater_script
+
+yarn
+
+cd /app
+
+node /updater_script/update_resolutions_lowest.js
+
+yarn
+
+# Check the test command completes successfully
+NODE_OPTIONS=--experimental-vm-modules yarn run jest --testPathIgnorePatterns=\\.int\\.test.ts --testTimeout 30000 --maxWorkers=50%