code: def html(filename):
      path = html_path(filename)
  
      if os.path.exists(path):
          with open(path, encoding="utf8") as file:
              return file.read()
  
      return ""
  
file_path: stable-diffusion-webui/modules/util.py
imports: import os
  import re
  from modules import shared
  from modules.paths_internal import script_path
label_desc: Use image node_id 4 for calling a global function with example usage: html(filename) and returns: str, file