code: def test_chebone(self):
      assert_equal(cheb.chebone, [1])
  
imports: from functools import reduce
  import numpy
  import numpy.polynomial.chebyshev
  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 TestConstants obj's underlying member method code with example usage: obj.test_chebone() without return types