import type { ApiResponse, HttpDelegate, HttpMethod, HttpRequestOptions, StreamResponse } from '../http.types';
/** HTTP delegate implementation using the native fetch API. */
export declare class FetchApiDelegate implements HttpDelegate {
    private config;
    /** @param config - Optional baseURL and default headers (merged with per-request headers). */
    constructor(config?: {
        baseURL?: string;
        headers?: Record<string, string>;
    });
    /** Overload when caller expects ApiResponse<T>. */
    request<T extends ApiResponse<any>>(method: HttpMethod, url: string, options?: Omit<HttpRequestOptions, 'fullResponse'>): Promise<T>;
    /** Performs a request and returns parsed JSON (or full ApiResponse if requested). Throws on !response.ok. */
    request<T = any>(method: HttpMethod, url: string, options?: HttpRequestOptions): Promise<T>;
    /** Returns the native Response for streaming (consumer checks res.ok). */
    requestStream(method: HttpMethod, url: string, options?: HttpRequestOptions): Promise<StreamResponse>;
}
export default FetchApiDelegate;