init static method

Implementation

static Future<Map<String,dynamic>> init() async{
  Map<String,dynamic> result={"status":"failure","message":"nothing executed"};
  if(!available&&!launching){
    launching=true;
    browser=await puppeteer.launch();
    result["status"]="success";
    result["version"]=await browser.version;
    available=true;
    launching=false;
  }
  return result;
}