/// <summary>
        /// Add metrics reporter.
        /// </summary>
        /// <param name="services">IServiceCollection to add the services to.</param>
        /// <param name="metricsOptions">Metrics configuration options.</param>
        /// <returns></returns>
        static void AddMetricsReporter(this IServiceCollection services, MetricsConfigurationOptions metricsOptions)
        {
            var metricsReporterOptions = new MetricsReporterOptions(metricsOptions);

            services.AddSingleton(metricsReporterOptions);
            services.AddHostedService <MetricsReporterService>();
        }
 /// <summary>
 /// Constructor of metrics reporter service.
 /// Creates new instance of class <see cref="MetricsReporterService"/>.
 /// </summary>
 public MetricsReporterService(IMetricsRoot metricsRoot, ILoggerFactory loggerFactory, MetricsReporterOptions options)
 {
     _logger      = loggerFactory.CreateLogger <MetricsReporterService>();
     _metricsRoot = metricsRoot;
     _options     = options;
 }