core/androidx.core.app/[main]NotificationCompatExtras/EXTRA_GROUP_SUMMARY

EXTRA_GROUP_SUMMARY

val EXTRA_GROUP_SUMMARY: String = "android.support.isGroupSummary"(source)

Extras key used internally by NotificationCompat to store the value set by setGroupSummary before it was available. If possible, use isGroupSummary to access this value.