import * as React from 'react';
export type ToastVariant = 'success' | 'error' | 'warning' | 'info';
export type ToastPosition = 'top-right' | 'top-center' | 'bottom-right' | 'bottom-center';
export interface ToastProps {
    /** Toast variant */
    variant?: ToastVariant;
    /** Toast message */
    children: React.ReactNode;
    /** Whether toast is visible */
    isOpen?: boolean;
    /** Callback when toast is dismissed */
    onClose?: () => void;
    /** Auto-dismiss duration in ms (0 = no auto-dismiss) */
    duration?: number;
    /** Optional action button */
    action?: {
        label: string;
        onClick: () => void;
    };
}
export interface ToastItem extends Omit<ToastProps, 'isOpen'> {
    id: string;
}
/**
 * Toast - Notification component
 *
 * Accessible feedback with auto-dismiss, queue management, and ARIA announcements.
 * Supports both declarative and imperative APIs.
 */
export declare const Toast: React.FC<ToastProps>;
/**
 * ToastProvider - Manages toast queue and positioning
 */
export declare const ToastProvider: React.FC<{
    children: React.ReactNode;
    position?: ToastPosition;
}>;
/**
 * useToast - Hook for imperative toast API
 */
export declare const useToast: () => (message: React.ReactNode, options?: Partial<Omit<ToastItem, "id" | "children">>) => string;
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