public async Task WriteAsync(
Stream output,
MetricsDataValueSource metricsData,
CancellationToken cancellationToken = default(CancellationToken))
{
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
var prometheusMetricsSnapshot = metricsData.GetPrometheusMetricsSnapshot(_options.MetricNameFormatter);
await AsciiFormatter.Write(output, prometheusMetricsSnapshot, _options.NewLineFormat);
}
