import { type Settings } from "@opengeni/config";
import type { GatewayRealtimeInitialItem, SessionRealtimeModel } from "@opengeni/contracts";
import { type Database } from "@opengeni/db";
export declare class GatewayRealtimeBrokerError extends Error {
    readonly code: "model_unavailable" | "credential_unavailable" | "provider_error" | "invalid_provider_response";
    readonly providerStatus: number | null;
    constructor(code: "model_unavailable" | "credential_unavailable" | "provider_error" | "invalid_provider_response", message: string, providerStatus?: number | null);
}
export type GatewayRealtimeConnectionSecret = {
    token: string;
    url: string;
    upstreamModelId: string;
    expiresAt: number | null;
    initialItems: GatewayRealtimeInitialItem[];
    instructions: string;
};
export declare function createGatewayRealtimeConnectionSecret(input: {
    db: Database;
    settings: Settings;
    workspaceId: string;
    sessionId: string;
    model: SessionRealtimeModel;
    fetchImpl?: typeof fetch;
}): Promise<GatewayRealtimeConnectionSecret>;