import { GeminiMessage, GeminiResponse } from '../typing/gemini';
export declare class GeminiAPI {
    private httpClient;
    private apiKey;
    /**
     * Initializes the GeminiAPI client.
     * @param apiKey Your Google AI API key.
     * @param baseUrl The base URL for the Gemini API. Defaults to the official endpoint.
     */
    constructor(apiKey: string, baseUrl?: string);
    /**
     * Generates a chat completion response from the Gemini model.
     * @param {object} params The parameters for the chat completion.
     * @param {GeminiMessage[]} params.messages The history of the conversation.
     * @param {string} [params.model] The model to use (e.g., 'models/gemini-pro').
     * @returns A promise that resolves with the model's response.
     * @throws {HttpError} If the API returns an error.
     */
    chatCompletion({ messages, model }: {
        messages: GeminiMessage[];
        model?: string;
    }): Promise<GeminiResponse>;
}