google.golang.org/grpc/experimental/stats.UnimplementedMetricsRecorder.RecordInt64Gauge (method, view implemented interface methods)

one use

	google.golang.org/grpc/experimental/stats (current package)
		metrics.go#L138: func (UnimplementedMetricsRecorder) RecordInt64Gauge(*Int64GaugeHandle, int64, ...string) {}