code: def layout(id_a=None, id_b=None, **other_unknown_query_strings):
      return html.Div(
          [
              html.Div(
                  "text for register_page", id="text_register_page"
              ),
              html.Div(
                  f"variables from pathname:{id_a} {id_b}",
                  id="path_vars",
              ),
          ]
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: layout(id_a, id_b) and returns: html