public string GetPageText(long pageId, TextFormatEnumContract format)
        {
            try
            {
                var result = m_client.GetString($"book/page/{pageId}/text?format={format}");
                return(result);
            }
            catch (HttpRequestException e)
            {
                if (m_logger.IsErrorEnabled())
                {
                    m_logger.LogError("{0} failed with {1}", m_client.GetCurrentMethod(), e);
                }

                throw;
            }
        }