anchor.diff:    static const int DEFAULT_HTTP_PORT = 80;
     static const int DEFAULT_HTTPS_PORT = 443;
   
  -  /**
  -   * Get and set the idle timeout of non-active persistent (keep-alive)
  -   * connections. The default value is 15 seconds.
  -   */
  +  /// Gets and sets the idle timeout of non-active persistent (keep-alive)
  +  /// connections.
  +  ///
  +  /// The default value is 15 seconds.
     Duration idleTimeout;
   
     /**
  -   * Get and set the maximum number of live connections, to a single host.
  +   * Gets and sets the maximum number of live connections, to a single host.
      *
      * Increasing this number may lower performance and take up unwanted
      * system resources.
  
positive.code:    */
    bool autoUncompress;
  
    /**
     * Set and get the default value of the `User-Agent` header for all requests
     * generated by this [HttpClient]. The default value is
     * `Dart/<version> (dart:io)`.
     *
     * If the userAgent is set to `null`, no default `User-Agent` header will be
     * added to each request.
     */
    String userAgent;
  
    factory HttpClient({SecurityContext context}) {
  
negative.code:   Duration deadline;
  
    /**
     * Gets or sets if the [HttpResponse] should buffer output.
     *
     * Default value is `true`.
     *
  