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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def GetAttributeContainerByIndex(self, index):
 """Retrieves a specific serialized attribute container from the list. Args: index (int):
 attribute container index. Returns: bytes: serialized attribute container data or None if not available. Raises: IndexError: if the index is less than zero. """

    if index < 0:
      raise IndexError(
          'Unsupported negative index value: {0:d}.'.format(index))

    if index < len(self._list):
      return self._list[index]

    return None