code: def test_barry_as_bdfl(self):
      code = "from __future__ import barry_as_FLUFL\n2 {0} 3"
      compile(
          code.format("<>"),
          "<BDFL test>",
          "exec",
          __future__.CO_FUTURE_BARRY_AS_BDFL,
      )
      with self.assertRaises(SyntaxError) as cm:
          compile(
              code.format("!="),
              "<FLUFL test>",
              "exec",
              __future__.CO_FUTURE_BARRY_AS_BDFL,
          )
      self.assertRegex(
          str(cm.exception),
          "with Barry as BDFL, use '<>' instead of '!='",
      )
      self.assertIn("2 != 3", cm.exception.text)
      self.assertEqual(cm.exception.filename, "<FLUFL test>")
  
      self.assertEqual(cm.exception.lineno, 2)
      # The old parser reports the end of the token and the new
      # parser reports the start of the token
      self.assertEqual(cm.exception.offset, 3)
  
imports: import __future__
  import unittest
label_desc: Use image node_id 1 for calling the FLUFLTests obj's underlying member method code with example usage: obj.test_barry_as_bdfl() without return types