code: def test_linearring(self):
      # Initialization
      # Linear rings won't usually be created by users, but by polygons
      coords = ((0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0))
      ring = LinearRing(coords)
      assert len(ring.coords) == 5
      assert ring.coords[0] == ring.coords[4]
      assert ring.coords[0] == ring.coords[-1]
      assert ring.is_ring is True
  
imports: import numpy
  import pytest
  from shapely import LinearRing, LineString, Point, Polygon
  from shapely.coords import CoordinateSequence
  from shapely.errors import TopologicalError
  from shapely.wkb import loads
label_desc: Use image node_id 1 for calling the TestPolygon obj's underlying member method code with example usage: obj.test_linearring() without return types