docs: def post_object_list(request):
      """MNStorage.create(session, did, object, sysmeta) → Identifier."""
      d1_gmn.app.views.assert_db.post_has_mime_parts(
          request, (('field', 'pid'), ('file', 'object'), ('file', 'sysmeta'))
      )
      url_pid = request.POST['pid']
      sysmeta_pyxb = d1_gmn.app.sysmeta.deserialize(request.FILES['sysmeta'])
      d1_gmn.app.views.assert_sysmeta.obsoletes_not_specified(sysmeta_pyxb)
      d1_gmn.app.views.assert_sysmeta.matches_url_pid(sysmeta_pyxb, url_pid)
      d1_gmn.app.views.assert_sysmeta.is_valid_sid_for_new_standalone(sysmeta_pyxb)
      d1_gmn.app.views.create.create_sciobj(request, sysmeta_pyxb)
      return url_pid