Colab防止断线代码

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function getElementByXpath(path) {
       return document.evaluate(path, document, null, 
       XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
  }
 
function reconnect(){
      console.log('working')
      getElementByXpath("//div[@id='top-toolbar']/colab-connect-button").click()
}
var a = setInterval(reconnect, 1*60*1000);
function stop(){
     clearInterval(a)
}
function start(){
     a = setInterval(reconnect, 1*60*1000);
}