import {createContext, useContext} from 'react'; type ContextValue = number; export const PickerItemHeightContext = createContext( undefined, ); export const usePickerItemHeight = () => { const value = useContext(PickerItemHeightContext); if (value === undefined) { throw new Error( 'usePickerItemHeight must be called from within PickerItemHeightContext.Provider!', ); } return value; };