license const strings = { ARIA_HIDDEN : 'aria-hidden' , ROLE : 'role' , } ; const cssClasses = { HELPER_TEXT_VALIDATION_MSG : 'mdc-select-helper-text--validation-msg' , HELPER_TEXT_VALIDATION_MSG_PERSISTENT : 'mdc-select-helper-text--validation-msg-persistent' , } ; export { strings , cssClasses } ;