/**
 * Accessibility utilities for Mermaid diagrams.
 */
/**
 * Apply accessibility metadata to diagram.
 * Adds accTitle and accDescr as Mermaid comments.
 * @param diagram - Mermaid diagram code
 * @param accTitle - Optional accessibility title
 * @param accDescr - Optional accessibility description
 * @returns Diagram with accessibility comments prepended
 */
export declare function applyAccessibility(diagram: string, accTitle?: string, accDescr?: string): string;
/**
 * Prepare accessibility comments without applying to diagram.
 * @param accTitle - Optional accessibility title
 * @param accDescr - Optional accessibility description
 * @returns Accessibility comments string or empty string
 */
export declare function prepareAccessibilityComments(accTitle?: string, accDescr?: string): string;
/**
 * Extract accessibility comments from diagram.
 * @param diagram - Mermaid diagram code
 * @returns Object with accTitle and accDescr if present
 */
export declare function extractAccessibility(diagram: string): {
    accTitle?: string;
    accDescr?: string;
};
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