/**
 * String utility functions
 */
/**
 * Capitalize first letter of a string
 */
export declare const capitalize: (str: string) => string;
/**
 * Convert string to kebab-case
 */
export declare const toKebabCase: (str: string) => string;
/**
 * Convert string to camelCase
 */
export declare const toCamelCase: (str: string) => string;
/**
 * Truncate string with ellipsis
 */
export declare const truncate: (str: string, length: number, suffix?: string) => string;
/**
 * Remove extra whitespace and normalize spaces
 */
export declare const normalizeWhitespace: (str: string) => string;
/**
 * Generate a random string
 */
export declare const generateId: (length?: number) => string;
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