import type { RealtimeClientMessage } from './clientMessages';
export type ResponseCreateControl = 'free' | 'create_requested' | 'cancel_requested';
type ResponseCreateErrorEvent = {
    error?: {
        code?: unknown;
        message?: unknown;
        event_id?: unknown;
    };
};
export declare class ResponseCreateSequencer {
    #private;
    private readonly sendEventNow;
    private readonly onError?;
    constructor(sendEventNow: (event: RealtimeClientMessage) => void, onError?: ((error: unknown) => void) | undefined);
    get ongoingResponse(): boolean;
    get responseControl(): ResponseCreateControl;
    get pendingResponseCreateEventId(): string | null;
    requestResponseCreate(event: RealtimeClientMessage, { manual }?: {
        manual?: boolean;
    }): void;
    markResponseCreated(): void;
    markResponseDone(): void;
    releaseWaiters(): void;
    beginCancelResponse(): boolean;
    handleResponseCreateError(event: ResponseCreateErrorEvent): boolean;
}
export {};