[
 {
  "name": "writer_aliens_cell",
  "expr": "sorted(doc.TextTables.getByIndex(0).getCellByName('A1').UserDefinedAttributes.ElementNames)",
  "expect": [
   "draw:alien-draw",
   "ex:alien-foreign",
   "fo:alien-fo",
   "office:alien-office",
   "style:alien-style",
   "svg:alien-svg",
   "table:alien-table",
   "text:enable-numbering"
  ]
 }
]