text: export const COURSE_LIST_REQUEST = 'COURSE_LIST_REQUEST';
  export const COURSE_LIST_SUCCESS = 'COURSE_LIST_SUCCESS';
  export const COURSE_LIST_FAIL = 'COURSE_LIST_REQUEST';
  
  export const COURSE_DETAIL_REQUEST = 'COURSE_DETAIL_REQUEST';
  export const COURSE_DETAIL_SUCCESS = 'COURSE_DETAIL_SUCCESS';
  export const COURSE_DETAIL_FAIL = 'COURSE_DETAIL_REQUEST';
  
  export const COURSE_CREATE_REQUEST = 'COURSE_CREATE_REQUEST';
  export const COURSE_CREATE_SUCCESS = 'COURSE_CREATE_SUCCESS';
  export const COURSE_CREATE_FAIL = 'COURSE_CREATE_FAIL';
  export const COURSE_CREATE_RESET = 'COURSE_CREATE_RESET';
  
  export const COURSE_UPDATE_REQUEST = 'COURSE_UPDATE_REQUEST';
  export const COURSE_UPDATE_SUCCESS = 'COURSE_UPDATE_SUCCESS';
  export const COURSE_UPDATE_FAIL = 'COURSE_UPDATE_FAIL';
  export const COURSE_UPDATE_RESET = 'COURSE_UPDATE_RESET';
  
  export const COURSE_DELETE_REQUEST = 'COURSE_DELETE_REQUEST';
  export const COURSE_DELETE_SUCCESS = 'COURSE_DELETE_SUCCESS';
  export const COURSE_DELETE_FAIL = 'COURSE_DELETE_FAIL';
  