import type { StreamingSlot } from '../utils/streamingSlots';
type StreamingSlotRegistrar = (slot: StreamingSlot) => void;
type StreamingSlotWarningController = {
    maybeWarn(primitiveName: string): void;
};
type StreamingSlotCollectionController = {
    isCollecting(): boolean;
};
export declare const hasRegisteredStreamingSlotRegistrar: () => boolean;
export declare const isStreamingSlotCollectionActive: () => boolean;
export declare const registerStreamingSlot: (slot: StreamingSlot) => void;
export declare const setStreamingSlotCollectionController: (controller: StreamingSlotCollectionController | null) => void;
export declare const setStreamingSlotRegistrar: (nextRegistrar: StreamingSlotRegistrar | null) => void;
export declare const setStreamingSlotWarningController: (controller: StreamingSlotWarningController | null) => void;
export declare const warnMissingStreamingSlotCollector: (primitiveName: string) => void;
export {};