public Builder setTicker(CharSequence tickerText) {
            mNotification.tickerText = limitCharSequenceLength(tickerText);
            return this;
        }
Sets the "ticker" text which is sent to accessibility services. Prior to
{@link Build.VERSION_CODES#LOLLIPOP}, sets the text that is displayed in the status bar
when the notification first arrives.
android/android_framework/base/src/main/java/github/tornaco/android/thanos/core/compat/NotificationCompat.java