/**
 * Gemini Provider Implementation
 * Wraps @google/genai SDK for the LLMProvider interface
 */
import { GoogleGenAI } from '@google/genai';
import type { LLMProvider, ProviderName, Message, GenerateOptions, GenerateResponse } from './types.js';
/**
 * Gemini LLM Provider
 */
export declare class GeminiProvider implements LLMProvider {
    readonly name: ProviderName;
    private client;
    private defaultModel;
    constructor(apiKey: string, defaultModel?: string);
    generate(prompt: string, options?: GenerateOptions): Promise<GenerateResponse>;
    generateConversation(messages: Message[], options?: GenerateOptions): Promise<GenerateResponse>;
    supportsWebGrounding(): boolean;
    getGroundingModel(): string;
    testConnection(): Promise<boolean>;
    /**
     * Get the underlying GoogleGenAI client for direct access
     * (backward compatibility)
     */
    getClient(): GoogleGenAI;
}
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