Consider this pipeline on a collection of orders. Each order has `status` and `amount`. What does it compute?
db.orders.aggregate([
{ $match: { status: { $in: ["shipped", "delivered"] } } },
{ $group: {
_id: "$status",
total: { $sum: "$amount" },
count: { $sum: 1 }
} },
{ $match: { count: { $gt: 100 } } }
]);