Downloading Image locally from GitHub Raw link using fs.writeFileSync() JS

Currently trying to download image from GitHub locally. Everything seems to work, the fetch goes through with a 200 OK response, however, I don’t understand how to store image itself:

const rawGitLink = "https://raw.githubusercontent.com/cardano-foundation/CIPs/master/CIP-0001/CIP_Flow.png" 

const folder = "/Folder"
const imageName = "/Test"
const imageResponse = await axios.get(rawGitLink)


 fs.writeFileSync(___dirname + folder + imageName, imageResponse, (err) => {
   //Error handling                    
 }
)