def METHOD_NAME(cls, polygon):
    """
    Make a PostGIS query that accurately calculates the area of
    the polygon(s) by first casting to a Geography.
    """
    with connection.cursor() as cursor:
        cursor.execute('SELECT ST_Area(ST_Transform(ST_GeomFromEWKB(%s), 4326)::geography)',  # NOQA
                       [polygon.ewkb])
        return cursor.fetchone()[0]