docs: def create_nation_fixtures(self):
          """
          Create national US and State Map
          """
          SHP_SLUG = "cb_{}_us_state_500k".format(self.YEAR)
          DOWNLOAD_PATH = os.path.join(self.DOWNLOAD_DIRECTORY, SHP_SLUG)
  
          shape = shapefile.Reader(
              os.path.join(DOWNLOAD_PATH, "{}.shp".format(SHP_SLUG))
          )
          fields = shape.fields[1:]
          field_names = [f[0] for f in fields]
          features = []
          for shp in shape.shapeRecords():
              state = dict(zip(field_names, shp.record))
              geodata = {
                  "type": "Feature",
                  "geometry": shp.shape.__geo_interface__,
                  "properties": {
                      "state": state["STATEFP"],
                      "name": state["NAME"],
                  },
              }
              features.append(geodata)
          Geometry.objects.update_or_create(
              division=self.NATION,
              subdivision_level=self.STATE_LEVEL,
              simplification=self.THRESHOLDS["nation"],
              source=os.path.join(
                  self.SHP_SOURCE_BASE.format(self.YEAR), SHP_SLUG
              )
              + ".zip",
              series=self.YEAR,
              defaults={
                  "topojson": self.toposimplify(
                      geojson.FeatureCollection(features),
                      self.THRESHOLDS["nation"],
                  )
              },
          )
  
          geo, created = Geometry.objects.update_or_create(
              division=self.NATION,
              subdivision_level=self.COUNTY_LEVEL,
              simplification=self.THRESHOLDS["nation"],
              source=os.path.join(
                  self.SHP_SOURCE_BASE.format(self.YEAR), SHP_SLUG
              )
              + ".zip",
              series=self.YEAR,
              defaults={"topojson": self.get_state_county_shps("00")},
          )
          tqdm.write("Nation\n")
          tqdm.write(
              self.TQDM_PREFIX
              + ">  FIPS {}  @ ~{}kb     ".format(
                  "00", round(len(json.dumps(geo.topojson)) / 1000)
              )
          )
          tqdm.write(self.style.SUCCESS("Done.\n"))