text: import React from "react";
  const dom = () => [
    {
      type: "math",
      subtype: "summationSymbol",
      children: [{ text: "\ud5dc" }],
    },
    {
      children: [
        {
          text: "",
        },
      ],
    },
  ];
  
  const Element = (attributes, children) => {
    return <span {...attributes}>{children}</span>;
  };
  
  const icon = (attributes, children) => {
    return <span {...attributes}>   &#54748;{children}</span>;
  };
  
  export default { slateDOM: dom, MathElement: Element, Icon: icon };