code: def _seq_comment(_element, _index):
      # get target comment
      _comment = ""
      token = _element.ca.items.get(_index, None)
      if token is not None:
          _comment = token[0].value
  
      return _comment
  
imports: import sys
  import argparse
  from argparse import Namespace
  import os, shutil
  import getopt
  from ruamel.yaml import YAML, yaml_object
  from ruamel.yaml.comments import CommentedSeq, CommentedMap
  from ruamel.yaml.tokens import CommentToken
label_desc: Use image node_id 4 for calling a global function with example usage: _seq_comment(_element, _index) and returns: _comment