code: def test_and_arg():
      c1 = Condition(lambda a: True)
      c2 = Condition(lambda a: True)
      c3 = c1 & c2
  
      assert c3.test_args("a")
      assert not c3.test_args()
      assert not c3.test_args("a", "b")
  
file_path: catboost/contrib/python/prompt-toolkit/py2/tests/test_filter.py
imports: from __future__ import unicode_literals
  from prompt_toolkit.filters import Condition, Never, Always, Filter
  from prompt_toolkit.filters.types import CLIFilter, SimpleFilter
  from prompt_toolkit.filters.utils import to_cli_filter, to_simple_filter
  from prompt_toolkit.filters.cli import HasArg, HasFocus, HasSelection
  import pytest
label_desc: Use image node_id 2 for calling a global function with example usage: test_and_arg() without return types