Both text and html fields of the timeline element display the contents of the timeline map. What happens if I fill in the timelineItem.text and timelineItem.html fields?
eg.
POST /mirror/v1/timeline HTTP/1.1 Host: www.googleapis.com Authorization: Bearer {auth token} Content-Type: application/json Content-Length: 26 { "text": "Hello world", "html": "I am a kitty" }
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