code: def __getitem__(self, key):
      m = self.__len__()
      if isinstance(key, int):
          if key + m < 0 or key >= m:
              raise IndexError("index out of range")
          if key < 0:
              i = m + key
          else:
              i = key
          return self._get_ring(i)
      elif isinstance(key, slice):
          res = []
          start, stop, stride = key.indices(m)
          for i in range(start, stop, stride):
              res.append(self._get_ring(i))
          return res
      else:
          raise TypeError("key must be an index or slice")
  
imports: import numpy
  import shapely
  from shapely.algorithms.cga import is_ccw_impl, signed_area
  from shapely.errors import TopologicalError
  from shapely.geometry.base import BaseGeometry
  from shapely.geometry.linestring import LineString
  from shapely.geometry.point import Point
label_desc: Use image node_id 5 for calling the InteriorRingSequence obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self, res