// Gets past 7 days of data for the given currency pair symbol and chart period (bar interval)
public List <PublicChart> GetOHLC(string pair, ChartPeriod period = ChartPeriod.Minutes5)
{
var currency_pair = CurrencyPair.Parse(pair);
var end_time = DateTime.Now;
var start_time = end_time.Subtract(TimeSpan.FromDays(7));
var res = m_api.GetChartData(currency_pair, period, start_time, end_time).Result;
return(res);
}