code: def get_current_source_file_path(frame):
      return os.path.realpath(
          os.path.abspath(
              os.path.join(os.path.dirname(inspect.getfile(frame)))
          )
      )
  
label_desc: Use image node_id 2 for calling a global function with example usage: get_current_source_file_path(frame) and returns: os