Inserts a new group at position before specified group in Accordion directive.
|name||String||The value of name attribute of the Accordion directive|
|group||Object||The group to add to the collection|
|refGroup||Object||A reference group before which the newly added group will be positioned|
This method does not return a value.
This method is part of IntegralUIAccordionService.
Supported in: v1.0.