code: def add_doc_dunder(md, dunder, class_key):
      dunder_name = dunder["def_name"]
      dunder_key = join([class_key, dunder_name], ".")
      dunder_def = gen_doc_dunder_def(dunder, False)
      md.list_pushn(join([html_key(dunder_key), dunder_def]))
  
      # Dunder doc
      if valid_dic_val(dunder, "doc"):
          md.textn(create_hyperlinks(md.prettify_doc(dunder["doc"])))
  
      # Return doc
      if valid_dic_val(dunder, "return"):
          md.list_push(bold("Return:") + " ")
          md.textn(italic(create_hyperlinks(dunder["return"])))
          md.list_pop()
  
      md.list_pop()
  
imports: import os
  import yaml
  import re
  import doc_gen_snipets
label_desc: Use image node_id 26 for calling a global function with example usage: add_doc_dunder(md, dunder, class_key) without return types