text: export const MACHINE_FETCH_REQUEST = 'MACHINE_FETCH_REQUEST';
  export const MACHINE_FETCH_SUCCESS = 'MACHINE_FETCH_SUCCESS';
  export const MACHINE_FETCH_FAILURE = 'MACHINE_FETCH_FAILURE';
  
  export const MACHINE_ADD_REQUEST = 'MACHINE_ADD_REQUEST';
  export const MACHINE_ADD_SUCCESS = 'MACHINE_ADD_SUCCESS';
  export const MACHINE_ADD_FAILURE = 'MACHINE_ADD_FAILURE';
  
  export const MACHINE_REMOVE_REQUEST = 'MACHINE_REMOVE_REQUEST';
  export const MACHINE_REMOVE_SUCCESS = 'MACHINE_REMOVE_SUCCESS';
  export const MACHINE_REMOVE_FAILURE = 'MACHINE_REMOVE_FAILURE';
  