code: def test_single_with_list():
      assert _product(1, [2, 3]) == [(1, 2), (1, 3)]
  
imports: import pytest
  import numpy
  from sklearn_evaluation.util import _can_iterate, is_column_vector, is_row_vector, _group_by, _product, _mapping_to_tuple_pairs, map_parameters_in_fn_call
label_desc: Use image node_id 23 for calling a global function with example usage: test_single_with_list() without return types