code: def class_args_to_exp(c, mappings=None):
      class_name = c["name"]
      class_name = (
          mappings.get(class_name, class_name)
          if mappings
          else class_name
      )
      class_args = c.get("args", {})
      return to_expression(class_name, class_args)
  
file_path: MONAILabel/monailabel/utils/others/class_utils.py
imports: import glob
  import importlib.util
  import inspect
  import logging
  import os
  import sys
  from distutils.util import strtobool
  from typing import List
  from monailabel.interfaces.exception import MONAILabelError, MONAILabelException
label_desc: Use image node_id 7 for calling a global function with example usage: class_args_to_exp(c, mappings) and returns: to_expression