/**
 * @file responsive.ts
 * Utilities for responsive chart sizing
 */
import type { Dispatch } from '@composable-svelte/core';
import type { ChartAction } from '../types/chart.types';
/**
 * Create a ResizeObserver to watch container size changes
 * and dispatch resize actions to the store
 */
export declare function createResizeObserver<T>(element: HTMLElement, dispatch: Dispatch<ChartAction<T>>): ResizeObserver;
/**
 * Calculate responsive dimensions based on container and aspect ratio
 */
export declare function calculateDimensions(container: HTMLElement, aspectRatio?: number): {
    width: number;
    height: number;
};
/**
 * Debounce resize events to avoid too many dispatches
 */
export declare function debounce<T extends (...args: any[]) => any>(fn: T, delay: number): (...args: Parameters<T>) => void;
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