export declare const isValidString: (value: unknown) => value is string;
export declare const removePrefixFromString: (str: string, prefix: string) => string;
export declare const matchOccurrence: (text: string, search: string) => number;
export declare const getFirstChar: (words: string[]) => string[];
export declare const generateUniqueUUID: () => `${string}-${string}-${string}-${string}-${string}`;
export declare const copyText: (text: string) => void;
export declare const capitalizeFirstLetter: (text: string) => string;
export declare const percentageToNumber: (percentageStr: string) => number;
export declare const maskValue: (value: string) => string;
/**
 * Transforms a string by replacing a separator with a replacement character and applying proper case formatting
 * @param text - The string to transform
 * @param separator - The separator to replace (defaults to underscore)
 * @param replacement - The replacement character (defaults to space)
 * @returns The transformed string with proper case formatting
 */
export declare const transformStringToProperCase: (text: string, separator?: string | RegExp, replacement?: string) => string;
export declare const capitalizeString: (text?: string) => string;