/**
 * Google Gemini Adapter - Direct Gemini API
 * Supports Gemini Pro, Gemini Pro Vision
 */
import { BaseAdapter, AdapterConfig, AdapterResponse, RequestOptions, StreamOptions, HealthCheckResult } from './base-adapter';
import { VendorRequest, VendorResponse, VendorStreamChunk, GoogleRequest } from '../../types/vendors';
export interface GoogleGeminiConfig extends AdapterConfig {
    api_key: string;
}
export declare class GoogleGeminiAdapter extends BaseAdapter {
    private client;
    private readonly model_name;
    constructor(model_name: string, config: GoogleGeminiConfig);
    protected getDefaultEndpoint(): string;
    execute(request: VendorRequest, options?: RequestOptions): Promise<AdapterResponse>;
    stream(request: VendorRequest, options: StreamOptions): Promise<AsyncIterable<VendorStreamChunk>>;
    private createStreamIterator;
    transformRequest(request: VendorRequest): GoogleRequest;
    transformResponse(response: unknown): VendorResponse;
    transformStreamChunk(chunk: unknown): VendorStreamChunk;
    healthCheck(): Promise<HealthCheckResult>;
    private handleGoogleError;
    private getModelPricing;
    private getModelMaxTokens;
}
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