code: def test_args():
      assert args((inc, 1)) == (1,)
      assert args((add, 1, 2)) == (1, 2)
      assert args(1) == ()
      assert args([1, 2, 3]) == [1, 2, 3]
  
file_path: lightning-flash/tests/core/serve/test_dag/test_rewrite.py
imports: import pytest
  from flash.core.serve.dag.rewrite import VAR, RewriteRule, RuleSet, Traverser, args, head
  from flash.core.utilities.imports import _TOPIC_SERVE_AVAILABLE
label_desc: Use image node_id 5 for calling a global function with example usage: test_args() without return types