code: def test_recall_reference_smaller():
      result = recall(("s1", "s2", "s3", "s4", "s5"), ("s1",))
  
      assert result == approx(1.0)
  
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  import pytest
  from pytest import approx
  from sumy.evaluation import precision, recall, f_score
label_desc: Use image node_id 10 for calling a global function with example usage: test_recall_reference_smaller() without return types