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  "path": "/notebooklm-tests-mind-map-controls-and-play-books-sources/",
  "publishedAt": "2026-04-29T15:21:26.000Z",
  "site": "https://www.testingcatalog.com",
  "tags": [
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  "textContent": "Google NotebookLM prepares Mind Map customization controls and a potential Play Books link as a new source type.",
  "title": "NotebookLM tests Mind Map controls and Play Books sources"
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