code: def test_at_least_one_field_name_required(self):
      with pytest.raises(ValueError, match="at least one name"):
          _make_tuple_bunch("Qwerty", [], ["a", "b"])
  
imports: import pytest
  import pickle
  from numpy.testing import assert_equal
  from scipy._lib._bunch import _make_tuple_bunch
label_desc: Use image node_id 23 for calling the TestMakeTupleBunch obj's underlying member method code with example usage: obj.test_at_least_one_field_name_required() without return types