code: def test_polygon_from_linestring():
      coords = [(0.0, 0.0), (1.0, 0.0), (1.0, 1.0), (0.0, 0.0)]
      line = LineString(coords)
      polygon = Polygon(line)
      assert polygon.exterior.coords[:] == coords
  
      # from unclosed linestring
      line = LineString(coords[:-1])
      polygon = Polygon(line)
      assert polygon.exterior.coords[:] == coords
  
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 18 for calling a global function with example usage: test_polygon_from_linestring() without return types