import React from 'react';
/**
 * Renders only the active section from the provided children.
 * Hides all other sections based on the active step index.
 *
 * @param children - The child elements to render, typically sections of a story.
 * @param activeStep - The index of the currently active section to display.
 * @param wrapperStyle - Optional styles to apply to the wrapper of the active section.
 * @param childProps - Additional props to pass to the active child element.
 *
 * @returns A JSX element containing the active section or null if none is active.
 */
export declare function renderActiveSection(children: React.ReactNode, activeStep: number, wrapperStyle?: React.CSSProperties, childProps?: any): (import("react/jsx-runtime").JSX.Element | null)[];