@copilotkit/runtime/dist/service-adapters/langchain/langchain-adapter.d.cts

<img src="https://github.com/user-attachments/assets/0a6b64d9-e193-4940-a3f6-60334ac34084" alt="banner" style="border-radius: 12px; border: 2px solid #d6d4fa;" />

import { CopilotRuntimeChatCompletionRequest, CopilotRuntimeChatCompletionResponse, CopilotServiceAdapter } from "../service-adapter.cjs";
import { LangChainReturnType } from "./types.cjs";
import { BaseMessage } from "@langchain/core/messages";
import { DynamicStructuredTool } from "@langchain/core/tools";

//#region src/service-adapters/langchain/langchain-adapter.d.ts
interface ChainFnParameters {
  model: string;
  messages: BaseMessage[];
  tools: DynamicStructuredTool[];
  threadId?: string;
  runId?: string;
}
interface LangChainAdapterOptions {
  /**
   * A function that uses the LangChain API to generate a response.
   */
  chainFn: (parameters: ChainFnParameters) => Promise<LangChainReturnType>;
}
declare class LangChainAdapter implements CopilotServiceAdapter {
  private options;
  /**
   * To use LangChain as a backend, provide a handler function to the adapter with your custom LangChain logic.
   */
  get name(): string;
  constructor(options: LangChainAdapterOptions);
  process(request: CopilotRuntimeChatCompletionRequest): Promise<CopilotRuntimeChatCompletionResponse>;
}
//#endregion
export { LangChainAdapter };
//# sourceMappingURL=langchain-adapter.d.cts.map