// TODO: Transform parameters
public async Task <Orders> GetClosedOrdersAsync(string address, string symbol = null, int limit = 300, int offset = 0, long?startMs = null, long?endMs = null, OrderSide?orderSide = null, int?total = 0)
{
string path = $"orders/closed?address={address}";
path += $"&limit={limit}";
path += $"&offset={offset}";
path += symbol?.Prepend("&symbol=");
path += startMs?.ToString().Prepend("&start=");
path += endMs?.ToString().Prepend("&end=");
path += total?.ToString().Prepend("&total=");
path += orderSide?.GetInt().ToString().Prepend("&side=");
HttpResponse result = await this.http.GetAsync(this.baseUrl + path);
return(JsonConvert.DeserializeObject <Orders>(result.Response));
}