text: const SIDEBAR_COLLAPSE = "SIDEBAR_COLLAPSE";
  const SIDEBAR_SPREAD = "SIDEBAR_SPREAD";
  const INIT_USERNAME = "INIT_USERNAME";
  const SET_DEFAULT_LAYOUT = "SET_DEFAULT_LAYOUT";
  
  const AUTH = "AUTH";
  const AUTH_NOT = "AUTH_NOT";
  
  const ADD_EBOOK = "ADD_EBOOK";
  const EDIT_EBOOK = "EDIT_EBOOK";
  
  export {
    SIDEBAR_COLLAPSE,
    SIDEBAR_SPREAD,
    INIT_USERNAME,
    SET_DEFAULT_LAYOUT,
    AUTH,
    AUTH_NOT,
    ADD_EBOOK,
    EDIT_EBOOK
  };
  