class_docstr: check wrt. the scipy implementation 
code: def test_jaccard(self):
      xq, yb = self.make_example()
      ref_dis = np.array(
          [
              [
                  (
                      np.min([x, y], axis=0).sum()
                      / np.max([x, y], axis=0).sum()
                  )
                  for y in yb
              ]
              for x in xq
          ]
      )
      new_dis = faiss.pairwise_distances(xq, yb, faiss.METRIC_Jaccard)
      self.assertTrue(np.allclose(ref_dis, new_dis))
  
imports: import numpy
  import faiss
  import unittest
  from common_faiss_tests import get_dataset_2
  import scipy.spatial.distance
label_desc: Use image node_id 10 for calling the TestExtraDistances obj's underlying member method code with example usage: obj.test_jaccard() without return types