import React from "react";
declare function useObserveContext<T>(context: React.Context<T>, nextObserveState?: (keyof T)[]): T;
declare function calculateChangedBits(prev: {
    [x: string]: any;
}, next: any): number;
declare function createObserveContext<T>(defaultValue: T): React.Context<T>;
export { calculateChangedBits, useObserveContext, createObserveContext };
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