export interface RealtimeSimulationDescriptor {
    adapter: string;
    version: string;
    protocol: string;
    tick_hz: number;
}
export interface RuntimeCapabilities {
    matchmaking?: string;
    delta_protocol?: string;
    max_frame_bytes?: number;
    room_modes?: string[];
    realtime_simulation?: boolean;
    realtime_simulation_game_id?: string;
    realtime_simulation_descriptor?: RealtimeSimulationDescriptor;
    stream_sender?: boolean;
    data?: boolean;
}
export type RealtimeSimulationUnavailableReason = 'unavailable' | 'unscoped' | 'wrong-game' | 'missing-descriptor';
export declare class RealtimeSimulationUnavailableError extends Error {
    readonly gameId: string;
    readonly reason: RealtimeSimulationUnavailableReason;
    readonly name = "RealtimeSimulationUnavailableError";
    readonly code = "REALTIME_SIMULATION_UNAVAILABLE";
    constructor(gameId: string, reason: RealtimeSimulationUnavailableReason);
}
export declare function requireRealtimeSimulationCapability(gameId: string | undefined, capability: RuntimeCapabilities): RealtimeSimulationDescriptor;