dwcarr

import type { BaseChatModelParams } from "@langchain/core/language_models/chat_models";
import {
  type OpenAIClient,
  type ChatOpenAICallOptions,
  type OpenAIChatInput,
  type OpenAICoreRequestOptions,
  ChatOpenAI,
} from "@langchain/openai";
import { getEnvironmentVariable } from "@langchain/core/utils/env";