code: def test_linestring(self):
      linestring = LineString([(0, 0), (1, 1)])
      assert orient(linestring, 1) == linestring
      assert orient(linestring, -1) == linestring
  
file_path: shapely/shapely/tests/legacy/test_orient.py
imports: import unittest
  from shapely.geometry import GeometryCollection, LinearRing, LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon
  from shapely.ops import orient
label_desc: Use image node_id 3 for calling the OrientTestCase obj's underlying member method code with example usage: obj.test_linestring() without return types