code: def test_separators(self):
      lst = [1, 2, 3, 4]
      expect = "[\n1,\n2,\n3,\n4\n]"
      expect_spaces = "[\n1, \n2, \n3, \n4\n]"
      # Ensure that separators still works
      self.assertEqual(
          expect_spaces,
          json.dumps(lst, indent=0, separators=(", ", ": ")),
      )
      # Force the new defaults
      self.assertEqual(
          expect, json.dumps(lst, indent=0, separators=(",", ": "))
      )
      # Added in 2.1.4
      self.assertEqual(expect, json.dumps(lst, indent=0))
  
file_path: catboost/contrib/python/simplejson/py3/simplejson/tests/test_indent.py
imports: from unittest import TestCase
  import textwrap
  import simplejson
  from simplejson.compat import StringIO
label_desc: Use image node_id 3 for calling the TestIndent obj's underlying member method code with example usage: obj.test_separators() without return types