This procedure is defined in the server but not documented via ad_proc or proc_doc and may be intended as a private interface.
The procedure is defined as:
proc nsmcp::accessAggregateBudget {value} {
set bytes [accessScanBudget $value]
if {$bytes<1048576} {error "accessAggregationMaxBytes must be at least 1MiB"}
return $bytes
}