resource method description
/files/instancelist/:instance_sid GET Returns a list containing file information for each file associated with an Instance. This list does not include comment files.
/files/link GET Returns a 302 redirect to download the file. Testing using the Try It button on this site will NOT redirect you but will show the URL that can be used to stream the file.
/files/upload/ POST Returns an array of file keys that you can post with your comment