import { OpenAIRealtimeWS } from 'openai/realtime/ws';
import type { SapOpenAiRealtimeInput } from './types.ts';
/**
 * Rewrites a realtime WebSocket URL for SAP AI Core compatibility.
 *
 * Ensures the path ends in `/v1/realtime` and strips all query params except
 * `api-version` (unsupported params like `deployment=` are forwarded by ws-proxy to
 * Azure upstream and can cause connection failures).
 * @param url - The URL to rewrite in place.
 * @returns The rewritten URL.
 * @throws If the URL path does not end in `/realtime`.
 * @internal
 */
export declare function rewriteRealtimeUrl(url: URL): URL;
/**
 * A pre-configured OpenAI Realtime API (speech-to-speech) client for SAP AI Core.
 *
 * Only `gpt-realtime` is supported. Session configuration must use the GA `session.update` schema
 * (`output_modalities`, nested `audio`), not the preview schema.
 *
 * Use {@link SapOpenAiRealtimeWs.createClient} to create an instance.
 * @experimental This class is experimental and may change at any time without prior notice.
 */
export declare class SapOpenAiRealtimeWs extends OpenAIRealtimeWS {
    static readonly create: never;
    static readonly azure: never;
    private _url;
    /**
     * @param context - The SAP OpenAI context.
     * @param options - The realtime input options.
     * @returns The WebSocket client options.
     */
    private static buildWsOptions;
    /**
     * Creates a pre-configured {@link SapOpenAiRealtimeWs} client and opens the WebSocket connection to SAP AI Core.
     * Resolves the deployment, fetches a bearer token, and sets the SAP-specific headers automatically.
     * @param options - Options including model deployment, destination, and client type. A plain model name string is accepted as shorthand for `{ deployment: modelName }`.
     * @returns A promise that resolves to a connected {@link SapOpenAiRealtimeWs} instance.
     * @example
     * ```ts
     * import { SapOpenAiRealtimeWs } from '@sap-ai-sdk/openai/realtime';
     *
     * const client = await SapOpenAiRealtimeWs.createClient('gpt-realtime');
     * client.on('session.created', () => {
     *   client.send({
     *     type: 'session.update',
     *     session: { type: 'realtime', output_modalities: ['audio'] }
     *   });
     * });
     * ```
     */
    static createClient(options: SapOpenAiRealtimeInput): Promise<SapOpenAiRealtimeWs>;
}
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