export declare const parsePossibleJSON: (maybeJSON: unknown) => any;
export declare function sanitizeString(string: string): string;
export declare const convertHtmlQuotes: (string: any) => any;
/**
 * Converts the first letter of the string to upper case. Note that with non-latin scrips this may not produce expected results
 */
export declare const upperCaseFirst: (string: string) => string;
/**
 * Escapes characters that have special meaning in regular expressions
 */
export declare const regexEscape: (string: string) => string;