code: def test_who_global(self, capsys):
      global x
      x = cupy.ones(10)  # NOQA
      cupy.who()
      out, err = capsys.readouterr()
      lines = out.split("\n")
      assert lines[-4].split() == ["x", "10", "80", "float64"]
      assert lines[-2] == "Upper bound on total bytes  =       80"
  
imports: import cupy
label_desc: Use image node_id 3 for calling the TestWho obj's underlying member method code with example usage: obj.test_who_global(capsys) without return types