/// <summary>
 /// Sets the Accept-Encoding header of the request to the specified value and quality.
 /// </summary>
 /// <param name="value">The Accept-Encoding header value.</param>
 /// <param name="quality">The Accept-Encoding header quality.</param>
 /// <returns>An <see cref="IRequest"/> object that represents the request.</returns>
 public static IRequest AcceptEncoding(this IWith @this, string value, double quality)
 => @this.AcceptEncoding(new StringWithQualityHeaderValue(value, quality));