code: def test_mixed_funclist(self, dtype):
      x = cupy.linspace(-2, 2, 6, dtype=dtype)
      condlist = [x < 0, x == 0, x > 0]
      funclist = [-10, lambda x: -x, 10, lambda x: x]
      with pytest.raises(NotImplementedError):
          cupy.piecewise(x, condlist, funclist)
  
file_path: cupy/tests/cupy_tests/functional_tests/test_piecewise.py
imports: import unittest
  import pytest
  import numpy
  import cupy
  from cupy import testing
label_desc: Use image node_id 13 for calling the TestPiecewise obj's underlying member method code with example usage: obj.test_mixed_funclist(dtype) without return types