text: export const addEventListener = (parent, type, listener) => parent.addEventListener(type, listener)
  
  export const appendChild = (parent, child) => parent.appendChild(child)
  
  export const createElement = tag => document.createElement(tag)
  
  export const defaultParagraphSeparatorString = 'defaultParagraphSeparator'
  
  export const exec = (command, value = null) => document.execCommand(command, false, value)
  
  export const formatBlock = 'formatBlock'
  
  export const queryCommandState = command => document.queryCommandState(command)
  
  export const queryCommandValue = command => document.queryCommandValue(command)
  