import type { Established } from "./established";
/** Tuning for the WebSocket fallback used when WebTransport is unavailable or loses the connect race. */
export interface WebSocketOptions {
    enabled?: boolean;
    url?: URL;
    delay?: DOMHighResTimeStamp;
}
/** A server certificate hash used to pin a self-signed server. `value` accepts raw bytes or a hex string. */
export interface CertificateHash {
    algorithm?: "sha-256";
    value: BufferSource | string;
}
/** WebTransport options extended with friendlier certificate pinning (hex hashes or a raw certificate). */
export interface WebTransportProps extends Omit<WebTransportOptions, "serverCertificateHashes"> {
    serverCertificateHashes?: CertificateHash[];
    serverCertificate?: string | BufferSource;
}
/** Options for {@link connect}. */
export interface ConnectProps {
    webtransport?: WebTransportProps;
    websocket?: WebSocketOptions;
    transport?: WebTransport;
}
/**
 * Establishes a connection to a MOQ server.
 *
 * @param url - The URL of the server to connect to
 * @returns A promise that resolves to a Connection instance
 */
export declare function connect(url: URL, props?: ConnectProps): Promise<Established>;
/**
 * Compute the SHA-256 hash of a certificate, the value `serverCertificateHashes`
 * pins. Accepts a PEM string or raw DER bytes. Matches the hex fingerprints a moq
 * server reports, so `Hex.fromBytes(await certificateHash(pem))` round-trips.
 */
export declare function certificateHash(cert: string | BufferSource): Promise<Uint8Array<ArrayBuffer>>;
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