code: def keyword(a=0, b=0):
      return a, b
  
file_path: mlflow/tests/utils/test_arguments_utils.py
imports: import functools
  import pytest
  from mlflow.utils.arguments_utils import _get_arg_names
label_desc: Use image node_id 3 for calling a global function with example usage: keyword(a, b) and returns: a,  b