{
  "url": "https://api.github.com/repos/octocat/Hello-World/downloads/1",
  "html_url": "https://github.com/repos/octocat/Hello-World/downloads/new_file.jpg",
  "id": 1,
  "name": "new_file.jpg",
  "description": "Description of your download",
  "size": 1024,
  "download_count": 40,
  "content_type": ".jpg",
  "policy": "ewogICAg...",
  "signature": "mwnFDC...",
  "bucket": "github",
  "accesskeyid": "1ABCDEFG...",
  "path": "downloads/ocotocat/Hello-World/new_file.jpg",
  "acl": "public-read",
  "expirationdate": "2011-04-14T16:00:49Z",
  "prefix": "downloads/octocat/Hello-World/",
  "mime_type": "image/jpeg",
  "redirect": false,
  "s3_url": "https://github.s3.amazonaws.com/"
}

Add s3 download resource fixture.
Add s3 download resource fixture.
