UI Kit Builder

{
  "sections": [
    {
      "header": "Collapsible Section",
      "collapsible": true,
      "uncollapsibleWidgetsCount": 1,
      "collapseControl": {
        "horizontalAlignment": "CENTER",
        "expandButton": {
          "text": "more settings",
          "type": "FILLED",
          "icon": {
            "materialIcon": {
              "name": "settings"
            }
          }
        },
        "collapseButton": {
          "text": "hide",
          "type": "OUTLINED"
        }
      },
      "widgets": [
        {
          "textParagraph": {
            "text": "For further guidance with rich text formatting, see <a href=https://developers.google.com/workspace/chat/format-messages#card-formatting>Text formatting for Widgets</a>."
          }
        },
        {
          "decoratedText": {
            "icon": {
              "knownIcon": "EMAIL"
            },
            "topLabel": "[Optional]",
            "text": "[Required]",
            "bottomLabel": "[Optional]",
            "switchControl": {
              "name": "checkbox1",
              "selected": false,
              "controlType": "CHECK_BOX"
            }
          }
        }
      ]
    }
  ]
}