code: def _rel_to_abs_asset_path(fpath, config_fpath):
      fpath = os.path.expanduser(fpath)
      if not os.path.isabs(fpath):
          return os.path.join(os.path.dirname(config_fpath), fpath)
      return fpath
  
imports: import collections
  import functools
  import imghdr
  import mimetypes
  import os
  import threading
  import numpy
  from werkzeug import wrappers
  from google.protobuf import json_format
  from google.protobuf import text_format
  from tensorboard import context
  from tensorboard.backend.event_processing import plugin_asset_util
  from tensorboard.backend.http_util import Respond
  from tensorboard.compat import tf
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.projector import metadata
  from tensorboard.plugins.projector.projector_config_pb2 import ProjectorConfig
  from tensorboard.util import tb_logging
label_desc: Use image node_id 6 for calling a global function with example usage: _rel_to_abs_asset_path(fpath, config_fpath) and returns: fpath, os