code: def _data(self, copy=False):
          
          data = {}
          for key, obj in self.__dict__.items():
              if isinstance(obj, (pd.Series, pd.DataFrame, pd.SparseSeries, pd.SparseDataFrame)):
                  if copy:
                      data[key] = obj.copy()
                  else:
                      data[key] = obj
          return data
docs: Get all data associated with the container as key value pairs.