/// <summary> /// Send a post request with header value "User-Agent": "overwrite" /// </summary> /// <param name='operations'> /// The operations group for this extension method. /// </param> /// <param name='userAgent'> /// Send a post request with header value "User-Agent": "overwrite" /// </param> /// <param name='cancellationToken'> /// The cancellation token. /// </param> public static async Task ParamExistingKeyAsync(this IHeader operations, string userAgent, CancellationToken cancellationToken = default(CancellationToken)) { await operations.ParamExistingKeyWithHttpMessagesAsync(userAgent, null, cancellationToken).ConfigureAwait(false); }