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