declare function convertMaskToPlaceholder(mask?: any[], placeholderChar?: string): string; declare function isArray(value: any): boolean; declare function isString(value: any): boolean; declare function isNumber(value: any): boolean; declare function isNil(value: any): boolean; declare function processCaretTraps(mask: any): { maskWithoutCaretTraps: any; indexes: any[]; }; export { convertMaskToPlaceholder, isArray, isNil, isNumber, isString, processCaretTraps };