These are the activity names of Trusted devices for smart lock as of MIUI 7.6.15.
1. com.google.android.gms/com.google.android.gms.trustagent.GoogleTrustAgentTrustedDevicesSettings
2. com.google.android.gms/com.google.android.gms.trustagent.TrustedDevicesIntroActivity
Does someone have any...