text: import {schema} from 'normalizr'
  
  export const user = new schema.Entity('users')
  export const supplier = new schema.Entity('suppliers')
  export const store = new schema.Entity('stores')
  export const warehouse = new schema.Entity('warehouses')
  export const category = new schema.Entity('categories')
  
  export const material = new schema.Entity('materials', {
    stores: [store],
    warehouses: [warehouse],
    categories: [category],
    supplier: supplier,
    updatedBy: user
  });
  