__init__(xhr, url, duration, headers, content) {
			/**
			 * Describes whether the response is successful (status codes `200..299`) or not
			 * @instance
			 * @memberof LuCI.response
			 * @name ok
			 * @type {boolean}
			 */
			this.ok = (xhr.status >= 200 && xhr.status <= 299);

			/**
			 * The numeric HTTP status code of the response
			 * @instance
			 * @memberof LuCI.response
			 * @name status
			 * @type {number}
			 */
			this.status = xhr.status;

			/**
			 * The HTTP status description message of the response
			 * @instance
			 * @memberof LuCI.response
			 * @name statusText
			 * @type {string}
			 */
			this.statusText = xhr.statusText;

			/**
			 * The HTTP headers of the response
			 * @instance
			 * @memberof LuCI.response
			 * @name headers
			 * @type {LuCI.headers}
			 */
			this.headers = (headers != null) ? headers : new Headers(xhr);

			/**
			 * The total duration of the HTTP request in milliseconds
			 * @instance
			 * @memberof LuCI.response
			 * @name duration
			 * @type {number}
			 */
			this.duration = duration;

			/**
			 * The final URL of the request, i.e. after following redirects.
			 * @instance
			 * @memberof LuCI.response
			 * @name url
			 * @type {string}
			 */
			this.url = url;

			/* privates */
			this.xhr = xhr;

			if (content instanceof Blob) {
				this.responseBlob = content;
				this.responseJSON = null;
				this.responseText = null;
			}
			else if (content != null && typeof(content) == 'object') {
				this.responseBlob = null;
				this.responseJSON = content;
				this.responseText = null;
			}
			else if (content != null) {
				this.responseBlob = null;
				this.responseJSON = null;
				this.responseText = String(content);
			}
			else {
				this.responseJSON = null;

				if (xhr.responseType == 'blob') {
					this.responseBlob = xhr.response;
					this.responseText = null;
				}
				else {
					this.responseBlob = null;
					this.responseText = xhr.responseText;
				}
			}
		}
@class response
@memberof LuCI
@hideconstructor
@classdesc

The `Response` class is an internal utility class representing HTTP responses.