title: download file to local computer sent attatched to message discord
body: <p>after looking on the Discord.js docs i can find an answer for the question, does someone know how to do it? theres already a question the page  but has no answers or comments.</p>
  
  <p>imagine that someone on the chat sentí an image, is there a way of the bot downloading the image or get the url of the image?</p>
  
  <p>thanks!</p>