code: def get_series(self, series):
          
          if series == "acs1":
              return self.census.acs1dp
          elif series == "acs5":
              return self.census.acs5
          elif series == "sf1":
              return self.census.sf1
          elif series == "sf3":
              return self.census.sf3
          else:
              return None
docs: Returns a census series API handler.