group
Returns the sub-group with the given name, creating it if it is not one of the predefined sub-groups.
Names are case-sensitive. If name equals the name of a predefined sub-group, that predefined group is returned; any other name, including one that only differs from a predefined sub-group by case, creates a new sub-group. The name Undefined is reserved in any letter case; use getUndefined instead.
Group names should be short and noun-based, so they read well as categories in a report. They consist of letters and digits of any script, single spaces between words, and the characters - _ . + / & ' #, start with a letter or a digit, must be in Unicode normalization form NFC, and are limited to 50 characters.
Return
the sub-group
Since
9.9.0
Parameters
the name of the sub-group
Throws
if the name is invalid or reserved