const logoPath = path.join(__dirname, 'image', 'logo.jpg');   const mediaurl='https://api.weixin.qq.com/cgi-bin/media/upload?access_token='+access_token+'&type=image'   const file=fs.createReadStream(logoPath);   let formdata=new FormData();   formdata.append('media',file,{filename:'logo.jpg'})   const mediares=await axios.post(mediaurl,formdata)