/**
 * Show keyboard help modal
 */
export function showKeyboardHelp(): void;
/**
 * Hide keyboard help modal
 */
export function hideKeyboardHelp(): void;
/**
 * Toggle keyboard help modal
 */
export function toggleKeyboardHelp(): void;
/**
 * Check if help modal is visible
 */
export function isHelpVisible(): any;
/**
 * Cleanup help modal
 */
export function cleanupKeyboardHelp(): void;
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