input: 
  def create_store_item(item_id, name, price, description):
      """Creates an instance of a StoreItem class with the given fields.
      >>> create_store_item(1, 'Book', 10.99, 'A great read')
      StoreItem(1, 'Book', 10.99, 'A great read')
      >>> create_store_item(2, 'T-shirt', 15.50, 'Comfortable fabric')
      StoreItem(2, 'T-shirt', 15.50, 'Comfortable fabric')
      """
      return StoreItem(item_id, name, price, description)
  
output:     class StoreItem:
          def __init__(self, item_id, name, price, description):
              self.item_id = item_id
              self.name = name
              self.price = price
              self.description = description
          
          def __repr__(self):
              return f"StoreItem({self.item_id}, '{self.name}', {self.price}, '{self.description}')"