A list of group summaries. A group summary consists of a
groupSummary element with key and
cardinality attributes. If the group has a display
name, the summary will also include a displayName attribute.
This attribute is optional.
Its form is unqualified.
Show details.
Base type of cardinality is int. There are several restrictions on the value. The range of the value is [-2147483648..2147483647]. The number of fractional digits is less than or equals to 0.