fix(create-langchain-integration): Update integration template (#7458)

Author: jacoblee93

libs/create-langchain-integration/template/package.json

@@ -1,7 +1,7 @@
 {
   "name": "langchain-integration",
   "version": "0.0.0",
-  "description": "Sample integration for LangChain.js",
+  "description": "Sample INTEGRATION_SHORT_NAME integration for LangChain.js",
   "type": "module",
   "engines": {
     "node": ">=18"
@@ -12,7 +12,7 @@
     "type": "git",
     "url": "[email protected]:langchain-ai/langchainjs.git"
   },
-  "homepage": "https://github.com/langchain-ai/langchainjs/tree/main/libs/langchain-INTEGRATION_NAME/",
+  "homepage": "https://github.com/langchain-ai/langchainjs/tree/main/libs/INTEGRATION_NAME/",
   "scripts": {
     "build": "yarn turbo:command build:internal --filter=@langchain/INTEGRATION_NAME",
     "build:internal": "yarn lc_build --create-entrypoints --pre --tree-shaking",
@@ -31,13 +31,14 @@
   },
   "author": "LangChain",
   "license": "MIT",
-  "dependencies": {
+  "peerDependencies": {
     "@langchain/core": ">=0.3.0 <0.4.0"
   },
   "devDependencies": {
     "@jest/globals": "^29.5.0",
     "@swc/core": "^1.3.90",
     "@swc/jest": "^0.2.29",
+    "@langchain/core": "workspace:*",
     "@langchain/scripts": ">=0.1.0 <0.2.0",
     "@tsconfig/recommended": "^1.0.3",
     "@typescript-eslint/eslint-plugin": "^6.12.0",
@@ -63,7 +64,11 @@
   },
   "exports": {
     ".": {
-      "types": "./index.d.ts",
+      "types": {
+        "import": "./index.d.ts",
+        "require": "./index.d.cts",
+        "default": "./index.d.ts"
+      },
       "import": "./index.js",
       "require": "./index.cjs"
     },
@@ -73,6 +78,7 @@
     "dist/",
     "index.cjs",
     "index.js",
-    "index.d.ts"
+    "index.d.ts",
+    "index.d.cts"
   ]
-}
+}

libs/create-langchain-integration/template/src/chat_models.ts

@@ -16,6 +16,12 @@ import {
 //   AIMessageChunk,
 // } from "@langchain/core/messages";
 
+// Uncomment if implementing tool calling
+
+// import {
+//   type BindToolsInput,
+// } from "@langchain/core/language_models/chat_models";
+
 /**
  * Input to chat model class.
  */
@@ -24,10 +30,10 @@ export interface ChatIntegrationInput extends BaseChatModelParams {}
 /**
  * Integration with a chat model.
  */
-export class ChatIntegration<
-    CallOptions extends BaseLanguageModelCallOptions = BaseLanguageModelCallOptions
-  >
-  extends SimpleChatModel<CallOptions>
+export class ChatIntegration
+  // Extend BaseLanguageModelCallOptions and pass it as the generic here
+  // to support typing for additional runtime parameters for your integration
+  extends SimpleChatModel<BaseLanguageModelCallOptions>
   implements ChatIntegrationInput
 {
   // Used for tracing, replace with the same name as your class
@@ -98,6 +104,22 @@ export class ChatIntegration<
   //   }
   // }
 
+  /**
+   * Implement to support tool calling.
+   * You must also pass the bound tools into your actual chat completion call.
+   * See {@link ../../langchain-cerberas/src/chat_model.ts} for
+   * an example.
+   */
+  // override bindTools(
+  //   tools: BindToolsInput[],
+  //   kwargs?: Partial<this["ParsedCallOptions"]>
+  // ): Runnable<BaseLanguageModelInput, AIMessageChunk, BaseLanguageModelCallOptions> {
+  //   return this.bind({
+  //     tools: tools.map((tool) => convertToIntegrationFormat(tool)),
+  //     ...kwargs,
+  //   });
+  // }
+
   /** @ignore */
   _combineLLMOutput() {
     return [];