docs: def iterator(self, includeKey=True, includeValue=True, prefix=None):
          """
          Store iterator
  
          :return: Iterator for data in all chunks
          """
  
          if not (includeKey or includeValue):
              raise ValueError("At least one of includeKey or includeValue "
                               "should be true")
          lines = self._lines()
          if includeKey and includeValue:
              return self._keyValueIterator(lines, prefix=prefix)
          if includeValue:
              return self._valueIterator(lines, prefix=prefix)
          return self._keyIterator(lines, prefix=prefix)