public ToStringBuilder appendSuper(String superToString) {
        if (superToString != null) {
            style.appendSuper(buffer, superToString);
        }
        return this;
    }
<p>Append the <code>toString</code> from the superclass.</p>

<p>This method assumes that the superclass uses the same <code>ToStringStyle</code>
as this one.</p>

<p>If <code>superToString</code> is <code>null</code>, no change is made.</p>

@param superToString  the result of <code>super.toString()</code>
@return this
@since 2.0
android/android_framework/base/src/main/java/lang3/builder/ToStringBuilder.java