/// <summary> /// Send a post request with header values "scenario": "valid", "value": "GREY" /// or "scenario": "null", "value": null /// </summary> /// <param name='operations'> /// The operations group for this extension method. /// </param> /// <param name='scenario'> /// Send a post request with header values "scenario": "valid" or "null" or /// "empty" /// </param> /// <param name='value'> /// Send a post request with header values 'GREY'. Possible values include: /// 'White', 'black', 'GREY' /// </param> public static void ParamEnum(this IHeader operations, string scenario, GreyscaleColors?value = default(GreyscaleColors?)) { operations.ParamEnumAsync(scenario, value).GetAwaiter().GetResult(); }