code: def test_repeat_0_with_group(self) -> None:
      grammar = """
          start: ('+' '-')* term NEWLINE
          term: NUMBER
          """
      self.assertEqual(
          self.calculate_first_sets(grammar),
          {"term": {"NUMBER"}, "start": {"'+'", "NUMBER"}},
      )
  
imports: import unittest
  from test import test_tools
  from typing import Dict, Set
label_desc: Use image node_id 10 for calling the TestFirstSets obj's underlying member method code with example usage: obj.test_repeat_0_with_group() without return types