My first glean c#

glean.cs

    // Initialize Glean SDK. `uploadEnabled` can be configured according to
    // user telemetry enable|disable setting.
    GleanInstance.Initialize(
        applicationId: "org.test.glean.sample",
        applicationVersion: "1.0",
        uploadEnabled: true,
        configuration: new Configuration(),
        dataDir: gleanDataDir
        );

    // Making a custom ping
    var customPing = new PingType<NoReasonCodes>(
            name: "sample",
            includeClientId: true,
            sendIfEmpty: false,
            reasonCodes: null
        );

    // Making a string metric, it will be sent in
    // `sample` ping.
    var testMetric = new StringMetricType(
        category: "test",
        disabled: false,
        lifetime: Lifetime.Application,
        name: "hellow_world",
        sendInPings: new string[] { "sample" });

    // Set a value to this test metric.
    testMetric.Set("my first metric.");
    // Submit this custom ping that include the metrics
    // that has `sample` in sendInPings.
    customPing.Submit();

    // We need to block the main process a couple of
    // seconds to avoid it quits in order to give enought 
    // time for letting Glean ping uploader thread finishes
    // its tasks.
    Thread.Sleep(1000);