code: def list(self, cart_glob=['*.json']):
          
          carts = []
          for glob in cart_glob:
              # Translate cart names into cart file names
              if not glob.endswith('.json'):
                  search_glob = glob + ".json"
              else:
                  search_glob = glob
  
              for cart in juicer.utils.find_pattern(Constants.CART_LOCATION, search_glob):
                  cart_name = cart.split('/')[-1].replace('.json', '')
                  carts.append(cart_name)
  
          return carts
docs: List all carts