code: def test_legint_zerointord(self):
      assert_equal(leg.legint((1, 2, 3), 0), (1, 2, 3))
  
imports: from functools import reduce
  import numpy
  import numpy.polynomial.legendre
  from numpy.polynomial.polynomial import polyval
  from numpy.testing import assert_almost_equal, assert_raises, assert_equal, assert_
label_desc: Use image node_id 3 for calling the TestIntegral obj's underlying member method code with example usage: obj.test_legint_zerointord() without return types