$addFields(AGGREGATION_PROJECTION)
$bucket()
$bucketAuto()
$collStats()
$count()
$facet(AGGREGATION_STAGE_DOCUMENT)
$findAndModify()
$geoNear()
$graphLookup()
$group(AGGREGATION_GROUP)
$indexStats()
$limit()
$listSessions()
$lookup()
$match(QUERY)
$merge()
$out()
$planCacheStats()
$project(AGGREGATION_PROJECTION)
$redact(AGGREGATION_EXPRESSION)
$replaceRoot()
$replaceWith(AGGREGATION_EXPRESSION)
$sample()
$search()
$set(AGGREGATION_PROJECTION)
$skip()
$sort(SORTING)
$sortByCount(AGGREGATION_EXPRESSION)
$unionWith()
$unset(DOCUMENT)
$unwind()