The Limit datatype includes various settings.

Table: Limit

limitNamestringyes The name of the limit.
allowLoginbooleanyes Whether the limit allows logging in.
dailyIngestlongyes The daily ingest allowed for the limit.
retentionintegeryes The retention in days allowed for the limit.
allowSelfServicebooleanyes Whether the limit allows self service.
deletedDatelong  The deleted date for the limit.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.