code: def test_operation_base_file(self, name):
      res = run_command(name)
      generated = res.stdout
      file_path = Path(alembic.__file__).parent / "operations/base.py"
      expected = file_path.read_text()
      eq_(generated, expected, compare(generated, expected))
  
file_path: alembic/tests/test_stubs.py
imports: import difflib
  from pathlib import Path
  import subprocess
  import sys
  import alembic
  from alembic.testing import combinations
  from alembic.testing import eq_
  from alembic.testing import TestBase
label_desc: Use image node_id 3 for calling the TestStubFiles obj's underlying member method code with example usage: obj.test_operation_base_file(name) without return types