The different possible event types.

| Enums ||
|---|---|
| `EVENT_TYPE_UNSPECIFIED` | Event type unknown. |
| `AUDIO_SEVERE_UNDERRUN` | Triggered when a audio devices run out of buffer data for more than 5 seconds. |
| `NETWORK_STATE_CHANGE` | Triggered immediately on any changes to a network connection. |
| `USB_ADDED` | Triggered when USB devices are added. |
| `USB_REMOVED` | Triggered when USB devices are removed. |
| `NETWORK_HTTPS_LATENCY_CHANGE` | Triggered when a new HTTPS latency problem was detected or the device has recovered form an existing HTTPS latency problem. |
| `WIFI_SIGNAL_STRENGTH_LOW` | Triggered when connected WiFi network signal strength drops below -70dBm. |
| `WIFI_SIGNAL_STRENGTH_RECOVERED` | Triggered when connected WiFi network signal strength is recovered from a signal drop. |
| `VPN_CONNECTION_STATE_CHANGE` | Triggered on changes to VPN connections. |
| `APP_INSTALLED` | Triggered when an app is installed. |
| `APP_UNINSTALLED` | Triggered when an app is uninstalled. |
| `APP_LAUNCHED` | Triggered when an app is launched. |
| `OS_CRASH` | Triggered when a crash occurs. |
| `EXTERNAL_DISPLAY_CONNECTED` | Triggered when an external display is connected. |
| `EXTERNAL_DISPLAY_DISCONNECTED` | Triggered when an external display is disconnected. |