修复以下错误代码：heurlhttpsapiopenaicomdashboardbillingcredit_grantsheadersContent-TypeapplicationjsonAuthorizationBearer $avaluethenx=xdata;ototal_available=parseFloatltotal_availabletoFixed2ototal_used=pars

修复后的代码：

he({url:"https://api.openai.com/dashboard/billing/credit_grants", headers:{"Content-Type":"application/json", Authorization:Bearer ${a.value}}}) .then(x => x.data) .then(l => { o.total_available = parseFloat(l.total_available).toFixed(2); o.total_used = parseFloat(l.total_used).toFixed(2); o.total_granted = parseFloat(l.total_granted).toFixed(2); });