/// <summary>
/// Get ticker information, String symbol (optional)
/// List all ticker by the string symbol is empty
/// </summary>
/// <param name="symbol">String The symbol (optional)</param>
/// <returns>Ticker information</returns>
public virtual async Task <MarketTicker> GetTickerAsync(string symbol)
{
return(await _apiService.EndpointMarketTickerAsync(symbol));
}