I would like to be able to in my mongoose schema specify an object with a variable number of keys whose corresponding values should all conform to a specified schema; similar to the ability to make an array with a variable number of elements who all follow a given schema. Is this possible?

mongoose.js

{
  "branches": {
    "#keyname#": {
      "name": String,
      "count": Number
    }
  }
}

// such that the following would be validated

{
  "branches": {
    "master": {
      "name": "Yours",
      "count": 4
    },
    "second": {
      "name": "Mine",
      "count": 20
    }
  }
}