/**
 * HTTP client implementation for Ozon Seller API SDK
 * Features intelligent retry logic, error handling, and request/response validation
 */
import type { OzonConfig, BaseRequest, BaseResponse, RequestOptions, HttpMethod } from "./types.js";
export declare class HttpClient {
    private readonly config;
    private readonly baseHeaders;
    constructor(config: OzonConfig);
    /**
     * Make an HTTP request with automatic retry logic
     */
    request<TRequest extends BaseRequest, TResponse extends BaseResponse>(method: HttpMethod, path: string, data?: TRequest, options?: RequestOptions): Promise<TResponse>;
    /**
     * GET request
     */
    get<TResponse extends BaseResponse>(path: string, options?: RequestOptions): Promise<TResponse>;
    /**
     * POST request
     */
    post<TRequest extends BaseRequest, TResponse extends BaseResponse>(path: string, data: TRequest, options?: RequestOptions): Promise<TResponse>;
    /**
     * PUT request
     */
    put<TRequest extends BaseRequest, TResponse extends BaseResponse>(path: string, data: TRequest, options?: RequestOptions): Promise<TResponse>;
    /**
     * DELETE request
     */
    delete<TResponse extends BaseResponse>(path: string, options?: RequestOptions): Promise<TResponse>;
    /**
     * Execute a single HTTP request
     */
    private executeRequest;
    /**
     * Handle HTTP response and parse result
     */
    private handleResponse;
    /**
     * Execute request with retry logic
     */
    private executeWithRetry;
    /**
     * Extract error data from response
     */
    private extractErrorData;
    /**
     * Extract headers from response
     */
    private extractHeaders;
    /**
     * Sleep utility for retry delays
     */
    private sleep;
    /**
     * Validate SDK configuration
     */
    private validateConfig;
}
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