Does free tier MongoDB Atlas M0 support trigger creation?

MongoDB Atlas Atlas Triggers & Functions
7

This is the contents of the "test.history_col" namespace after the 2 inserts:

test> db.history_col.find()
[
  {
    _id: ObjectId("6407e5a2e4f987c6ca2b010d"),
    operation: 'insert',
    'Full Document': { _id: ObjectId("6407e5a0f3015b4b893b868a"), a: 1 }
  },
  {
    _id: ObjectId("6407e5a3e4f987c6ca2b02a5"),
    operation: 'insert',
    'Full Document': {
      _id: ObjectId("6407e5a2f3015b4b893b868b"),
      a: 'this is a test string for inserting a document'
    }
  }
]