def __init__(self, row_data: Amazon201911RowData):
    super().__init__(row_data)
    self._price: Optional[int] = row_data.price
    self._number: Optional[int] = row_data.number
def __init__(self, row_data: Amazon201911RowData):
    super().__init__(row_data)
    self._price: Optional[int] = row_data.price
    self._number: Optional[int] = row_data.number