Akka.Cluster.StandardMetrics.SystemMemory.ExtractSystemMemory C# (CSharp) Method

            public static SystemMemory ExtractSystemMemory(NodeMetrics nodeMetrics)
            {
                var used = nodeMetrics.Metric(ClrProcessMemoryUsed);
                var available = nodeMetrics.Metric(SystemMemoryAvailable);
                if (used == null || available == null) return null;
                var max = nodeMetrics.Metric(SystemMemoryAvailable) != null ? (long?)Convert.ToInt64(nodeMetrics.Metric(SystemMemoryMax).SmoothValue) : null;
                return new SystemMemory(nodeMetrics.Address, nodeMetrics.Timestamp, 
                    Convert.ToInt64(used.SmoothValue), Convert.ToInt64(available.SmoothValue), max);
            }