public async Task<GetQuotesResponse> GetQuotes(GetQuotesRequest request)
 {
     IClientRequest nasdaqRequest = new NasdaqRequest(request);
     var response = _client.Post(nasdaqRequest);
     if (response.Content.Headers.ContentType.MediaType == "application/octet-stream")
     {
         var csvQuotes = await response.Content.ReadAsStringAsync();
         return new GetQuotesResponse
         {
             Quotes = new NasdaqHistoricalQuotesParser().Parse(csvQuotes).ToList()
         };
     }
     return new GetQuotesResponse();
 }
 public NasdaqRequest(GetQuotesRequest request)
 {
     _request = request;
 }