/**
 * Raw TLS transport for Antigravity API requests.
 *
 * Bypasses Node.js `fetch()` to give byte-level control over HTTP/1.1
 * request serialization, header ordering, and response parsing. Supports
 * HTTPS CONNECT proxies via standard env vars (HTTPS_PROXY, NO_PROXY).
 *
 * Adapted from cortexkit/antigravity-auth agy-transport.ts with fixes
 * for lifecycle defects, our code style, and clean separation from
 * header construction (headers come from the caller, not built here).
 */
export declare const DEFAULT_RESPONSE_HEADER_TIMEOUT_MS = 180000;
export declare const DEFAULT_IDLE_TIMEOUT_MS = 180000;
export type TransportOptions = {
    /** Max time to wait for connection + response headers (ms). */
    timeoutMs?: number;
    /** Max time the response body may stall with no bytes before socket is destroyed (ms). */
    idleTimeoutMs?: number;
    signal?: AbortSignal | null;
    onDebug?: (message: string) => void;
};
/**
 * Drop-in replacement for `fetch()` that uses raw TLS sockets instead
 * of Node.js built-in fetch. Gives byte-level control over HTTP/1.1
 * serialization and supports HTTPS CONNECT proxies.
 *
 * @param url - Target URL (must be https)
 * @param init - Standard RequestInit (method, headers, body, signal)
 * @param options - Transport-specific options (timeouts, debug callback)
 */
export declare function fetchWithRawTransport(url: string, init?: RequestInit, options?: TransportOptions): Promise<Response>;
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