/**
 * Removes diacritics from the given string.
 * @param input The string to deburr.
 * @returns Returns the deburred string.
 *
 * @credits
 * [Lodash](https://lodash.info/doc/deburr)
 */
export declare function deburr(input: unknown): string;
/**
 * The RegExp to escape the RegExp special characters.
 */
export declare const REGEX_ESCAPE_REGEXP: RegExp;
/**
 * Escapes the RegExp special characters in the given string.
 *
 * @param input The string to escape.
 * @returns Returns the escaped string.
 *
 * @example
 * ```ts
 * escapeRegExp('hello. world');
 * // => 'hello\. world'
 * ```
 */
export declare function escapeRegExp(input: string): string;
/**
 * Escapes the HTML entities in the given string.
 *
 * @param input The string to escape.
 * @returns Returns the escaped string.
 *
 * @example
 * ```ts
 * escapeHtml('<div>hello</div>');
 * // => '&lt;div&gt;hello&lt;/div&gt;'
 * ```
 */
export declare function escapeHtml(input: string): string;
/**
 * Converts the given string to Upper First.
 *
 * @param input The string to convert.
 * @returns Returns the converted string.
 *
 * @example
 * ```ts
 * toUpperFirst('hello world');
 * // => 'Hello world'
 * ```
 *
 * @example Cyrillic
 * ```ts
 * toUpperFirst('хелло ворлд');
 * // => 'Хелло ворлд'
 * ```
 */
export declare function toUpperFirst(input: string): string;
/**
 * Converts the given string to Camel Case.
 *
 * @param input The string to convert.
 * @returns Returns the converted string.
 *
 * @example
 * ```ts
 * toCamelCase('hello world');
 * // => 'helloWorld'
 * ```
 *
 * @example Cyrillic
 * ```ts
 * toCamelCase('Хелло Ворлд');
 * // => 'хеллоВорлд'
 * ```
 */
export declare function toCamelCase(input: string): string;
/**
 * Converts the given string to Kebab Case.
 *
 * @param input The string to convert.
 * @returns Returns the converted string.
 *
 * @example
 * ```ts
 * toKebabCase('hello world');
 * // => 'hello-world'
 * ```
 *
 * @example Cyrillic
 * ```ts
 * toKebabCase('Хелло Ворлд');
 * // => 'хелло-ворлд'
 * ```
 */
export declare function toKebabCase(input: string): string;
/**
 * Converts the given string to Snake Case.
 *
 * @param input The string to convert.
 * @returns Returns the converted string.
 *
 * @example
 * ```ts
 * toSnakeCase('hello world');
 * // => 'hello_world'
 * ```
 *
 * @example Cyrillic
 * ```ts
 * toSnakeCase('Хелло Ворлд');
 * // => 'хелло_ворлд'
 * ```
 */
export declare function toSnakeCase(input: string): string;
/**
 * Converts the given string to Pascal Case.
 *
 * @param input The string to convert.
 * @returns Returns the converted string.
 *
 * @example
 * ```ts
 * toPascalCase('hello world');
 * // => 'HelloWorld'
 * ```
 *
 * @example Cyrillic
 * ```ts
 * toPascalCase('Хелло Ворлд');
 * // => 'ХеллоВорлд'
 * ```
 */
export declare function toPascalCase(input: string): string;
/**
 * Converts the given name to initials.
 *
 * @param input The name to convert.
 * @returns Returns the initials of the name.
 *
 * @example Full name
 * ```ts
 * toInitials('Foo Bar Qux');
 * // => 'FQ'
 * ```
 *
 * @example Double-barrelled name
 * ```ts
 * toInitials('Foo Bar');
 * // => 'FB'
 * ```
 *
 * @example Single name
 * ```ts
 * toInitials('Foo');
 * // => 'F'
 * ```
 */
export declare function toInitials(input: unknown): string;