{
  "document_id": "1234567890abcdef",
  "content": {
    "text": "New content to be added",
    "style": {
      "bold": true,
      "fontSize": 12,
      "foregroundColor": {
        "color": { "rgbColor": { "red": 0.1, "green": 0.1, "blue": 0.1 } }
      }
    }
  },
  "insert_location": "END",
  "format_options": {
    "preserveFormatting": true
  }
}

{
  "text": "Simple text content"
}

{
  "paragraph": {
    "text": "Formatted paragraph",
    "style": {
      "alignment": "CENTER",
      "lineSpacing": 1.5
    }
  }
}

{
  "table": {
    "rows": 3,
    "columns": 2,
    "data": [
      ["Header 1", "Header 2"],
      ["Row 1 Col 1", "Row 1 Col 2"],
      ["Row 2 Col 1", "Row 2 Col 2"]
    ]
  }
}