code: def test_lat_long_grid_predicate(self):
      assert fn.latLongGridPredicate((1.11, 2.22)) == {"(1.1, 2.2)"}
      assert fn.latLongGridPredicate((1.11, 2.27)) == {"(1.1, 2.3)"}
      assert fn.latLongGridPredicate((1.18, 2.22)) == {"(1.2, 2.2)"}
      assert fn.latLongGridPredicate((1.19, 2.29)) == {"(1.2, 2.3)"}
  
imports: import unittest
  from dedupe import predicate_functions
  from dedupe.cpredicates import ngrams
label_desc: Use image node_id 27 for calling the TestPredicateFunctions obj's underlying member method code with example usage: obj.test_lat_long_grid_predicate() without return types