Block element data structure

{
  "blockType": enum(BlockType),             // Block element type. See the `BlockType` enum at the bottom of this document.
  /**
   * The following are all supported Block types, such as Heading and Paragraph.
   * Each Block type has its own property.
  */
  "blockquote": Object(Callout),
  "callout": Object(Callout),
  "columns": Object(Columns),
  "heading": Object(Heading),
  "paragraph": Object(Paragraph),
  "orderedList": Object(OrderedList)
  "unorderedList": Object(UnorderedList),
  "table": Object(Table),
  // Each Block type has its own supported BlockChildren. See the `children` description under each Block type.

  "children": BlockChildren[ ],

}

{
  "blockType": "paragraph",
  "paragraph": {
    "text": "Paragraph text content",
    "indent": { "left": 32 },
    "folded": false
  },
  "children": [InlineElement]
}

{
  "blockType": "heading",
  "heading": {
    "level": 1,
    "text": "Level 1 heading"
  },
  "children": [InlineElement]
}

{
  "blockType": "blockquote",
  "blockquote": {
    "text": "Quoted content",
    "indent": { "left": 32 }
  },
  "children": [InlineElement]
}

{
  "blockType": "callout",
  "callout": {
    "sticker": "灯泡",
    "showstk": true,
    "color": "#333333",
    "border": "#FFD700",
    "bgcolor": "#FFF9C4"
  },
  "children": [BlockElement]
}

{
  "blockType": "columns",
  "columns": {
    "size": 2,
    "noFill": false
  },
  "children": [BlockElement]
}

{
  "blockType": "orderedList",
  "orderedList": {
    "list": {
      "listId": "list-001",
      "level": 0,
      "listStyleType": "decimal",
      "listStyle": {
        "format": "decimal",
        "text": "%1.",
        "align": "left"
      },
      "symbolStyle": {
        "bold": false
      }
    },
    "indent": { "left": 32 }
  },
  "children": [InlineElement]
}

{
  "blockType": "unorderedList",
  "unorderedList": {
    "list": {
      "listId": "list-002",
      "level": 0,
      "listStyleType": "disc",
      "listStyle": {
        "format": "disc",
        "text": "%1",
        "align": "left"
      },
      "symbolStyle": {
        "bold": false
      }
    },
    "indent": { "left": 32 }
  },
  "children": [InlineElement]
}

{
  "blockType": "table",
  "table": {
    "rolSize": 3,
    "colSize": 4,
    "cells": [
      ["Row1-Col1", "Row1-Col2", "Row1-Col3", "Row1-Col4"],
      ["Row2-Col1", "Row2-Col2", "Row2-Col3", "Row2-Col4"],
      ["Row3-Col1", "Row3-Col2", "Row3-Col3", "Row3-Col4"]
    ]
  }
}

{
  "text": "Bold red text",
  "sz": 16,
  "color": "red",
  "highlight": "yellow",
  "bold": true,
  "italic": false,
  "stike": false,
  "underline": false,
  "fonts": "monospace"
}

{
  "elementType": "sticker",
  "properties": {
    "code": "大笑"
  }
}

{
  "elementType": "image",
  "properties": {
    "src": "https://example.com/image.jpg"
  }
}

{
  "elementType": "link",
  "properties": {
    "href": "https://example.com"
  },
  "children": [
    { "text": "Click to open the link" }
  ]
}