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{
  "type": "tableRow",
  "content": [
    {
      "type": "tableHeader",
      "attrs": {},
      "content": [
        {
          "type": "paragraph",
          "content": [
            {
              "type": "text",
              "text": "Heading one",
              "marks": [
                {
                  "type": "strong"
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}