code: def test_locations_in_alt_action_and_group(self) -> None:
      grammar = """
          start: t=term NEWLINE? $ { ast.Expression(t, LOCATIONS) }
          term:
              | l=term '*' r=factor { ast.BinOp(l, ast.Mult(), r, LOCATIONS) }
              | l=term '/' r=factor { ast.BinOp(l, ast.Div(), r, LOCATIONS) }
              | factor
          factor:
              | (
                  n=NAME { ast.Name(id=n.string, ctx=ast.Load(), LOCATIONS) } |
                  n=NUMBER { ast.Constant(value=ast.literal_eval(n.string), LOCATIONS) }
              )
          """
      parser_class = make_parser(grammar)
      source = "2*3\n"
      o = ast.dump(
          parse_string(source, parser_class).body,
          include_attributes=True,
      )
      p = ast.dump(
          ast.parse(source).body[0].value, include_attributes=True
      ).replace(" kind=None,", "")
      diff = "\n".join(
          difflib.unified_diff(
              o.split("\n"), p.split("\n"), "cpython", "python-pegen"
          )
      )
      self.assertFalse(diff)
  
imports: import ast
  import difflib
  import io
  import textwrap
  import unittest
  from test import test_tools
  from typing import Dict, Any
  from tokenize import TokenInfo, NAME, NEWLINE, NUMBER, OP
label_desc: Use image node_id 40 for calling the TestPegen obj's underlying member method code with example usage: obj.test_locations_in_alt_action_and_group() without return types