code: def test_error_msg(self):
      @jit.rawkernel()
      def f(x):
          return unknown_var  # NOQA
  
      x = cupy.zeros((10,), dtype=numpy.float32)
      with pytest.raises(NameError, match="Unbound name: unknown_var"):
          f((1,), (1,), (x,))
  
imports: import numpy
  import pytest
  import cupy
  from cupyx import jit
  from cupy import testing
  from cupy.cuda import device
  from cupy.cuda import runtime
label_desc: Use image node_id 44 for calling the TestRaw obj's underlying member method code with example usage: obj.test_error_msg() and returns: unknown_var