/**
 * Blur active element if it's an interactive UI element (input, button, link)
 */
export function blurActiveElement(): void;
/**
 * Check if an input element is focused
 */
export function isInputFocused(): any;
/**
 * Save current focus state
 */
export function saveFocus(): void;
/**
 * Restore previous focus state
 */
export function restoreFocus(): void;
/**
 * Setup focus management for modal
 */
export function setupModalFocusManagement(): void;
/**
 * Check if keyboard event should be handled by canvas
 */
export function shouldHandleKeyboardEvent(event: any): boolean;
/**
 * Invalidate the focusable elements cache
 */
export function invalidateFocusableCache(): void;
/**
 * Set initial focus when modal opens
 */
export function setInitialFocus(): void;
/**
 * Focus trap for modal - prevents Tab from escaping to elements behind the modal
 */
export function setupFocusTrap(): (() => void) | undefined;
/**
 * Reset focus management state for re-initialization
 */
export function resetFocusManagement(): void;
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