protected boolean isFullDetail(Boolean fullDetailRequest) {
        if (fullDetailRequest == null) {
            return defaultFullDetail;
        }
        return fullDetailRequest.booleanValue();
    }
<p>Is this field to be output in full detail.</p>

<p>This method converts a detail request into a detail level.
The calling code may request full detail (<code>true</code>),
but a subclass might ignore that and always return
<code>false</code>. The calling code may pass in
<code>null</code> indicating that it doesn't care about
the detail level. In this case the default detail level is
used.</p>

@param fullDetailRequest  the detail level requested
@return whether full detail is to be shown
android/android_framework/base/src/main/java/lang3/builder/ToStringStyle.java