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::accessIngestionBegin {} {
set key nsmcp:access-writer:[ns_info server]
set token [nsv_incr $key sequence]
set last [expr {[nsv_exists $key state] ? [dict get [nsv_get $key state] lastRun] : {}}]
set lastBatch {}
if {[nsv_get $key state previous] && [dict exists $previous lastBatch]} {set lastBatch [dict get $previous lastBatch]}
set now [clock clicks -milliseconds]
nsv_set $key state [dict create token $token running true startedAt [clock seconds] startedTicks $now phaseTicks $now phase starting parsedBytes 0 records 0 requestRecords 0 malformedRecords 0 oversizedRecords 0 committedBatches 0 lastBatch $lastBatch phaseMilliseconds {} lastRun $last]
return $token
}