code: def update_item(filename, item, uuid):
      
      with atomic_write(os.fsencode(str(filename))) as temp_file:
          with open(os.fsencode(str(filename))) as products_file:
              # load the JSON data into memory
              products_data = json.load(products_file)
          # apply modifications to the JSON data wrt UUID
          # TODO: handle this in a neat way
          if 'products' in products_data[-1]:
              # handle orders object
              [products_data[i]["products"][0].update(item) for (
                  i, j) in enumerate(products_data) if j["uuid"] == str(uuid)]
          else:
              # handle products object
              [products_data[i].update(item) for (i, j) in enumerate(
                  products_data) if j["uuid"] == str(uuid)]
          # save the modified JSON data into the temp file
          json.dump(products_data, temp_file)
          return True
docs: Update entry by UUID in the JSON file