import { ComponentProps, ComponentType, FunctionComponent } from 'react';
import { PRIORITY } from './constants';
import type { Cleanup } from './preload';
export type PreloadPriority = typeof PRIORITY.HIGH | typeof PRIORITY.LOW;
export type LazyOptions = {
    /**
     * Whenever it should be required and rendered in SSR
     * If false it will just render the provided fallback
     */
    ssr?: boolean;
    /**
     * Id of `PHASE` responsible for start loading
     */
    defer?: number;
    /**
     * Id of the module being imported (normally its path).
     * It's calculated and provided by babel plugin
     */
    moduleId?: string;
};
export type LazyComponent<C extends ComponentType<any>> = FunctionComponent<ComponentProps<C>> & {
    preload: (priority?: PreloadPriority) => Cleanup;
    getAssetUrls: () => string[] | undefined;
};
export interface SubscriptionContextValue {
    subscribe: (callback: () => void) => Cleanup;
    currentValue: () => number;
}
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