code: def test_round_to_1(self):
      assert predicates.roundTo1(22315) == {"20000"}
      assert predicates.roundTo1(-22315) == {"-20000"}
  
imports: import unittest
  from dedupe import predicates
label_desc: Use image node_id 2 for calling the TestNumericPredicates obj's underlying member method code with example usage: obj.test_round_to_1() without return types