def as_series_dict_class(seriesclass):
def decorate_class(cls):<EOL><INDENT>"""<STR_LIT>"""<EOL>seriesclass.DictClass = cls<EOL>return cls<EOL><DEDENT>return decorate_class<EOL>
Decorate a `dict` class to declare itself as the `DictClass` for
    its `EntryClass`

    This method should be used to decorate sub-classes of the
    `TimeSeriesBaseDict` to provide a reference to that class from the
    relevant subclass of `TimeSeriesBase`.