/**
 * Google Provider - Implementation for Google Gemini API
 */
import { BaseProvider } from './base';
import type { ProviderConfig, GenerateTextOptions, GenerateTextResult, StreamTextOptions, StreamChunk, GenerateObjectOptions, GenerateObjectResult, Message, ToolDefinition } from './types';
interface GeminiContent {
    role: 'user' | 'model';
    parts: Array<{
        text?: string;
        functionCall?: any;
        functionResponse?: any;
    }>;
}
export declare class GoogleProvider extends BaseProvider {
    readonly providerId = "google";
    private apiKey;
    private baseUrl;
    constructor(modelId: string, config?: ProviderConfig);
    generateText(options: GenerateTextOptions): Promise<GenerateTextResult>;
    streamText(options: StreamTextOptions): Promise<AsyncIterable<StreamChunk>>;
    generateObject<T = any>(options: GenerateObjectOptions<T>): Promise<GenerateObjectResult<T>>;
    private formatRequest;
    protected formatMessages(messages: Message[]): GeminiContent[];
    protected formatTools(tools: ToolDefinition[]): any[];
    private mapFinishReason;
}
export {};