text: import { createSlice } from '@reduxjs/toolkit';
  
  const { reducer, actions } = createSlice({
    name: 'groups',
    initialState: {
      items: {},
    },
    reducers: {
      update(state, action) {
        action.payload.forEach((item) => state.items[item.id] = item);
      },
    },
  });
  
  export { actions as groupsActions };
  export { reducer as groupsReducer };
  