How to render the itoggle form field in template?

Hello,

I want to render the itoggle seperately within my custom template file.
Now for other (custom) fields, I just need to do:

print render($form['field_isPrivate']);

but when I do this for the field that uses the iToggle widget, it won't appear. Instead it keeps appearing when calling drupal_render_children($form). So I figured that I must be using the wrong variable but when I check dprint_r($form), I can't find another one besides the field name.

Can anyone point me in the right direction?