Retrieve a single feature

{
  "topic": "org.eclipse.ditto/fancy-thing/things/twin/commands/retrieve",
  "headers": {
    "correlation-id": "<command-correlation-id>"
  },
  "path": "/features/accelerometer"
}

{
  "topic": "org.eclipse.ditto/fancy-thing/things/twin/commands/retrieve",
  "headers": {
    "correlation-id": "<preserved-command-correlation-id>"
  },
  "path": "/features/accelerometer",
  "value": {
    "properties": {
      "x": 3.141,
      "y": 2.718,
      "z": 1,
      "unit": "g"
    },
    "desiredProperties": {
      "x": 4,
      "y": 3,
      "z": 5,
      "unit": "g"
    }
  },
  "status": 200
}