code: def test_rotate_empty(self):
      rls = affinity.rotate(load_wkt("LINESTRING EMPTY"), 90)
      els = load_wkt("LINESTRING EMPTY")
      assert rls.equals(els)
  
imports: import unittest
  from math import pi
  import numpy
  import pytest
  from shapely import affinity
  from shapely.geometry import Point
  from shapely.wkt import loads
label_desc: Use image node_id 2 for calling the TransformOpsTestCase obj's underlying member method code with example usage: obj.test_rotate_empty() without return types