List current users' profile images

{
  "type": "array",
  "items": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "description": "An image URL."
      },
      "source": {
        "type": "string",
        "description": "The source of the image.  Currently one of: gravatar, facebook, google <br /><br /> NOTE: Additional sources may be added in the future (eg. 'trashnothing' when support for uploading custom profile images is added) so clients should take care to support arbitrary sources being returned.\n"
      }
    }
  }
}