code: def menu_links(datasette, actor, request):
      if actor:
          label = "Hello"
          if request.args.get("_hello"):
              label += ", " + request.args["_hello"]
          return [{"href": datasette.urls.instance(), "label": label}]
  
imports: import asyncio
  from datasette import hookimpl, Permission
  from datasette.facets import Facet
  from datasette import tracer
  from datasette.utils import path_with_added_args
  from datasette.utils.asgi import asgi_send_json, Response
  import base64
  import pint
  import json
label_desc: Use image node_id 17 for calling a global function with example usage: menu_links(datasette, actor, request) and returns: list