code: def test_numpy_copy(self):
      creator.create(CNAME, numpy.ndarray)
      a = creator.__dict__[CNAME]([1, 2, 3, 4])
      b = creator.__dict__[CNAME]([5, 6, 7, 8])
  
      a[1:3], b[1:3] = b[1:3].copy(), a[1:3].copy()
      ta = numpy.array([1, 6, 7, 4])
      tb = numpy.array([5, 2, 3, 8])
      numpy.testing.assert_array_equal(a, ta)
      numpy.testing.assert_array_equal(b, tb)
  
file_path: deap/tests/test_creator.py
imports: import unittest
  import array
  from deap import creator
label_desc: Use image node_id 6 for calling the TestCreator obj's underlying member method code with example usage: obj.test_numpy_copy() without return types