{
  "templates": {
    "block": {
      "type": "container",
      "items": [
        {
          "type": "text",
          "$text": "text",
          "font_size": 16,
          "width": {
            "type": "wrap_content"
          },
          "margins": {
            "left": 10,
            "right": 10,
            "top": 10,
            "bottom": 10
          }
        }
      ],
      "background": [
        {
          "type": "solid",
          "color": "#A0FFA0"
        }
      ],
      "margins": {
        "left": 10,
        "top": 10
      }
    }
  },
  "card": {
    "log_id": "test",
    "variables": [
      {
        "name": "block1_width",
        "type": "integer",
        "value": 0
      }
    ],
    "states": [
      {
        "state_id": 0,
        "div": {
          "type": "container",
          "orientation": "horizontal",
          "items": [
            {
              "type": "block",
              "text": "width = match_parent",
              "layout_provider": {
                "width_variable_name": "block1_width"
              }
            },
            {
              "type": "block",
              "text": "width = block1.width x 0.75",
              "width": {
                "type": "fixed",
                "value": "@{block1_width * 3 / 4}"
              }
            }
          ]
        }
      }
    ]
  }
}