db.simple.find()

{
  "_id": ObjectId("5988aeb33b04d96991d11159"),
  "name": "foo",
  "cnt": 3
}
{
  "_id": ObjectId("5988aeb33b04d96991d1115a"),
  "name": "foo",
  "cnt": 4
}
{
  "_id": ObjectId("5988aeb33b04d96991d1115b"),
  "name": "foo",
  "cnt": 5
}
{
  "_id": ObjectId("5988aeb33b04d96991d1115c"),
  "name": "bar",
  "cnt": 5
}
{
  "_id": ObjectId("5988aeb43b04d96991d1115d"),
  "name": "bar",
  "cnt": 9
}
Fetched 5 record(s) in 4ms