docs: def _fetch_dimensions(self, dataset):
          """ Declaring available dimensions like this is not mandatory,
           but nice, especially if they differ from dataset to dataset.
  
           If you are using a built in datatype, you can specify the dialect
           you are expecting, to have values normalized. This scraper will
           look for Swedish month names (e.g. 'Januari'), but return them
           according to the Statscraper standard ('january').
          """
          yield Dimension(u"date", label="Day of the month")
          yield Dimension(u"month", datatype="month", dialect="swedish")
          yield Dimension(u"year", datatype="year")