import 'dotenv/config';
import { ChatOpenAI, OpenAIEmbeddings, type ChatOpenAIFields, type ChatOpenAIResponseFormat } from '@langchain/openai';
import OpenAI, { type ClientOptions } from 'openai';
export type LLMProvider = 'openrouter' | 'nebius';
export declare function getLLMProvider(): LLMProvider;
export declare function getProviderConfig(): {
    provider: "nebius";
    baseURL: string;
    apiKey: string;
    headers: Record<string, string>;
} | {
    provider: "openrouter";
    baseURL: string;
    apiKey: string;
    headers: {
        'HTTP-Referer': string;
        'X-Title': string;
    };
};
declare const getChatOpenAiModel: (params?: ChatOpenAIFields) => ChatOpenAI;
declare const getOpenAiClient: (params?: ClientOptions) => OpenAI;
declare const getOpenAiEmbeddings: (params?: ConstructorParameters<typeof OpenAIEmbeddings>[0]) => OpenAIEmbeddings;
export declare const getOpenRouterChatModel: (params?: ChatOpenAIFields) => ChatOpenAI<import("@langchain/openai").ChatOpenAICallOptions>;
export { getChatOpenAiModel, getOpenAiClient, getOpenAiEmbeddings };
export type { ChatOpenAIResponseFormat };
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