import React from 'react';
export declare function useMastheadSearch(initialIsOpen: boolean): {
    containerWidth: number;
    mastheadRef: (element: any) => void;
    setShowSearch: React.Dispatch<React.SetStateAction<boolean>>;
    showSearch: boolean;
    toggleSearch: (event: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
};
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